After use, CUTEK® Colourtones generally do not require storing because they are a one-use product. If the Colourtone can contents have solidified, do not use the Colourtone. Instead, dispose of the can and contents according to local regulations.

CUTEK® Wood Reviver, CUTEK® Quickclean and CUTEK® Wood Stripper can be stored for many years after initial use. To store correctly, store in a cool, dry area out of direct sunlight; lid must be airtight. Keep from freezing.

It’s important to understand that CUTEK® Extreme is a penetrating oil designed to enhance the natural colour and grain of wood. CUTEK® Extreme is sold as a clear oil that can be used to protect the wood from moisture and moisture related movement such as cupping, warping and splitting. Using just the clear oil will protect the wood, providing stability and structural integrity while allowing it to naturally lighten and produce a silver weathered patina over time. The soft natural lightening and silvering of the wood represents a low care option and is becoming an increasingly popular way to leave wood in weather exposed settings.

Wood projects using clear CUTEK® Extreme oil that have silvered can easily be returned back to the wood’s original colour using CUTEK® Wood Reviver and high pressure washing followed by further applications of CUTEK® Extreme.

However, if you desire to maintain the original colour of the ‘freshly oiled’ wood then you need to purchase a CUTEK® Colourtone to add to the clear CUTEK® Extreme. It is important that the Colourtone that you choose is suited to your selected wood as it should further enhance the natural colour and grain and help to maintain its “natural” colour over a longer period of time.

If you would like to alter the colour of your wood (e.g. make your wood look lighter or darker than its natural state), there are Colourtones that can help you meet your design requirements.

Always obtain a Pre-Mixed Sample to assess your colour choice before proceeding with your project.

NOTE: CUTEK® is unable to offer any specific performance warranties in relation to colour retention for CUTEK® products because of many variables related to the weathering process including but not limited to: the age and porosity of the wood, species, situation, design and structure, aspect, differing exposure to the weather, method of application and adequacy of preparation

What to expect when using CUTEK® Colourtone

Most wood care products on the market leave a build up of material on the surface of the wood. In the short term this provides more colour, but in the long term the finish can be prone to peeling and flaking, which requires time and money to repair.

The CUTEK® system is unique as the colour is designed to fade, ware or erode slowly over time and with use, rather than peel or flake. The initial CUTEK® Colourtone intensity on new smooth wood projects only offers subtle amounts of pigment that enhance the wood. Wood that is exposed fully to the weather will lighten faster as the wood acclimatizes after installation than older, rougher wood over the same time period. A follow up application of CUTEK® Colourtoned oil after this initial weathering period will provide much greater colour intensity and durability as the wood becomes rougher and more absorbent of pigment over time.

How to increase colour intensity on new wood

New wood is milled smooth and often has a mill glaze which will greatly restrict the initial colour adhesion of any pigment. Better results can be achieved by creating a rougher surface and preparing the wood using CUTEK® Wood Reviver in combination with a high pressure washer. Sanding the new wood with 80 grit paper will give even better results as it removes mill glaze and creates a much rougher surface which will enable greater colour intensity.

Note: The rougher the surface of the wood, the greater the colour intensity and durability. Rough sawn or heavy brushed wood profiles will take more oil and colour so much bolder colour contrast can be achieved. The amount of mill glaze if any that is present on any job can vary significantly depending on species density, and machining method used.

Note: Sanded surfaces should be vacuumed or washed thoroughly to remove all loose wood and dust.

Exterior wood surfaces that have any previous coating products on it must be stripped bare, before protecting with CUTEK® Extreme. It is very important that there is NO barrier to the penetration, diffusion or migration of CUTEK® Extreme into the wood. All previous coatings must be COMPLETELY removed.

CUTEK® Wood Stripper is the perfect choice to remove existing coatings in an easy and safe manner.

Because of the wide variation in coatings to be stripped it is vital to test CUTEK® Wood Stripper before starting your project. This will help you determine how long you will need to leave CUTEK® Wood Stripper on the wood and how much product you will need for the job.

As a substitute for hardwood floors or decking, bamboo can be an attractive choice. It looks great and as a renewable resource is an environmentally friendly option. Engineered bamboo offers stability and good looks too.

However, bamboo isn’t wood and behaves very differently. It needs a much higher level of care and a different approach to make sure it’s protected and stays looking its best for as long as possible.

We recommend using CUTEK® Extreme on bamboo used for exterior applications.

Bamboo is a grass, and doesn’t contain the extractives that give durability to many woods. It’s also very hygroscopic, meaning it takes up moisture rapidly and can also dry out very quickly, especially in direct sun. This makes engineered bamboo very susceptible to unsightly black staining moulds and significant surface erosion when exposed to rain and sun, meaning that it will split/check and go grey/black rapidly if not properly protected.

Additionally, because engineered bamboo absorbs and releases moisture very quickly, most traditional wood coatings, deck stains and oils don’t last very long on fully weather exposed material.

We have observed that what may work reasonably well on wood for 6 to 12 months can often fail on bamboo material inside 12 weeks from time of application.

In our many years of testing, observation and user feedback, we have found that some engineered bamboo products are just not suitable for full weather exposed applications, despite manufacturer’s claims.

If you’re using CUTEK ® Extreme on bamboo we recommend following this process for best results.

• Inspect your bamboo surface on a regular basis after coating with CUTEK® Extreme. Clean with CUTEK® Wood Reviver or CUTEK® QuickClean at the first sign of mould or surface erosion/splitting, followed by the application of another thin coat of CUTEK® Extreme. This must be done as frequently as is necessary.
• If installing a bamboo deck that has been factory pre-coated with CUTEK® Extreme it will need at least one thin coat within one month of install. If mixing in a CUTEK® Colourtone to alter the existing colour, then two coats will be needed for adequate colour coverage. A further coat should be applied within 6-12 months and then annually.
• New bamboo decking which has not been pre-coated with CUTEK® Extreme should be coated on all sides before installation, and given two further coats with a CUTEK® Colourtoned oil within a month of installation, following the application procedure on the label.
• A further coat should be applied within 6-12 months and then annually.

If you are using strand woven bamboo:

Strand woven bamboo can contain glue which varies in quality. CUTEK® Extreme will not penetrate the glue in strand woven bamboo as it forms a physical barrier. Some products are very prone to surface expansion and become very rough. If this occurs, sanding back to a flat surface using 80 grit paper is the best preparation prior to the application of CUTEK® Extreme.

Clear CUTEK® Extreme can be used without a CUTEK® Colourtone, and will fade to a very light natural matt colour over a couple of months, and will resist greying for some time before needing to be recoated. To maintain a ‘freshly oiled’ look, more frequent oiling is required.

NOTE: There are many engineered bamboo products on the market, of widely varying quality. CUTEK® Extreme may or may not work on your chosen engineered bamboo product despite following our recommendations.

IMPORTANT NOTE

While the procedures detailed above have proven in some cases to produce a satisfactory result in the decorative coating of engineered bamboo in many countries and are detailed in good faith to assist people, we do not, and are unable to, offer any warranty or performance guarantee of any type (including but not limited to any warranty or performance guarantee in respect of coating longevity, mould/fungi degradation, and splitting/delamination) for the use of any CUTEK® products on any bamboo substrate.

This is due to the wide variation in the quality of products in the engineered bamboo market including variations in manufacturing processes, varying quality control, varying efficacy of preservative/treatment processes, origin of the raw bamboo, time of bamboo harvest, quality of the glues, place of manufacture etc.

Some manufacturers choose to specify CUTEK® oils as suitable for their engineered bamboo product, but this does not mean that we are included or involved in any independent warranties issued or implied by a specific manufacturer or distributor in relation to their product.

Based on their causal factors and nature, wood discolourations can be put into two major groups, microbial and non-microbial discolorations. In our experience, non-microbial discolourations are not as well understood as microbial ones despite their common occurrence.

Microbial Colour Changes

Microbial discolourations are caused by micro-organisms. Many wood discolouring fungi/bacteria such as blue stain fungi, mould fungi, and bacteria, may produce dark or coloured stains when exposed to the right conditions of nutrient, moisture and light.

Non-microbial Colour Changes

Non-microbial discolourations can be mechanical (e.g., burn marks, dirt), chemical, biochemical or photochemical but may also have both chemical and microbial involvement. Analysis of these stains can be complex as many factors may be involved such as exposure to light and oxygen, substrate/coating pH, species, external contaminants, presence of metal ions and moisture content.

Discolouration and Extractives

All wood contains “extractives” which are chemicals that are solvent and/or water-soluble compounds that can be highly reactive. Extractives are non-structural chemical components that are mostly produced during heartwood formation. Extractives are extremely varied in their chemical nature and embrace many different classes of organic compounds, including tannins and other phenolic compounds, resins, essential oils, fats, terpenes, flavanoids, quinones, carbohydrates, glycosides and alkaloids.  These extractives can be a major contributor to wood discolourations. For example, some common polyphenol extractives exposed to oxygen and light, oxidize to form quinones and other complex polymers. Generally speaking, dark woods tend to lighten and light-coloured wood tends to go yellow. Specific changes are very dependent on specific environmental conditions and species of wood.

Water Stain Discolouration

Exposure of raw wood to water can mobilize and cause leaching of water-soluble extractives presenting as unsightly water stain rings when the wood is dry. Water stain can be quickly and easily removed with CUTEK® Wood Reviver.

Natural Silvering of Wood

Uncoated exterior wood that is exposed to UV rays breaks down the lignin in the cellulose causing photochemical degradation. This is what causes wood that is bare or coated in clear CUTEK® Extreme to lighten/silver over time. The specific shade of grey and rate of change is dependent on species, exposure aspect and coating format used. If you wish to slow the rate of “silvering off” of your exterior CUTEK® Extreme coated wood then it is vital to add a CUTEK® Colourtone to your CUTEK® Extreme prior to application in all coats. Exterior wood that has “greyed off” may be quickly and easily restored to fresh looking wood by using CUTEK® Wood Reviver.

Discolouration caused by Alkaline Materials

Alkaline substances and chemicals such as bleach and alkaline adhesives etc., can react with woods high in polyphenolic tannins to produce stains. These resulting stains can often be distinguished from iron stain as they are usually brown in colour whereas iron stain typically has a black/blue appearance.

Discolouration Caused by Iron Stain

Iron stain is an unsightly blue–black or grey discolouration that is often incorrectly described as “mould” because of its frequently spotty appearance. Iron stain can occur on nearly all woods; however, some woods are particularly prone to iron stain because they contain large amounts of tannin-like extractives. The discolouration is usually caused by a chemical reaction between extractives and iron content in steel products, such as nails, screws, and other fasteners. Steel used in contact with wood must be protected from corrosion by using stainless steel or processes such as hot dip galvanizing. Problems with iron contamination can come from traces of iron left on wood from cutting, grinding or slicing; cleaning the surface with steel wool, wire brushes, or iron tools; using finishes stored in rusty containers; and using previous iron-containing or iron-contaminated finishes. Iron dust from metalworking and even plant fertilizers can be sources of iron along with removal of old rusted eavestrough, handrail construction and contact by steel capped boots. Merely striking wood with a hammer can cause iron stain on some wood. Urine on wood floors will also hasten the reaction with iron and wood extractives, producing the typical iron stain discolouration. Unprotected wood that get wet on or off site prior to fixing are particularly vulnerable as the water-soluble extractives are more readily mobilized to react with any iron contamination. Iron stain can be quickly and easily removed with CUTEK® Wood Reviver.

Discolouration in Wood with High Leucoanthocyanin Levels

Some wood types can contain high levels of naturally occurring tannins called leucoanthocyanins which normally appear colourless. In rare circumstances, the application of a higher acid value glue or coating (such as CUTEK® Extreme) can cause the leucoanthocyanin tannin to chemically change into anthocyanins and other derivative compounds. These compounds can then appear in the visible region of the light spectrum, showing more commonly as an attractive red note enhancement of the underlying substrate, however more rarely purple, blue, bluish green through black hues may be visible in some areas. The actual colour of the stain is a function of overall pH and environmental factors such as heat, light levels, enzymes, and oxygen. Not all woods are susceptible.

Natural features of wood types like this show why it is important to choose suitable wood variety for the intended environment, coating format and end use application. If you suspect that this may be a problem for your project, please use a Pre-Mixed Sample to help determine the suitability of our product for your project.

If you are unsure if CUTEK® Extreme is the right option for your project, please contact our friendly staff  for further advice.

Remedial Treatments

CUTEK® staff are experts in remedial treatment products and processes for many types of wood discolourations and stains. If you have a specific issue that you would like advice on, please contact us for further information.

Stains On Wood Due to Natural Causes

Wood is a natural material that contains a wide variety of compounds that are termed “extractives”. While they are not part of the essential wood structure, they contribute to natural colour, odour, durability and moisture absorbency of a particular species, and may comprise of polyphenols, terpenes, oils, fats, gums, resins and waxes.

Extractives can leach to the surface of the wood and stain the wood.

Stains On Processed Wood Arising from Damage To The Living Tree

If the protective bark on a tree is ruptured the tree will respond by forming protective compounds. Any ruptures potentially expose the tree to invasion by a variety of organisms. If these compounds and organisms are exposed to oxygen and weather it may cause an unsightly stain on processed wood.

Stains Due to Chemical Changes In Wood Extractives

As trees grow, streaks or blotches of different shades in the wood can occur. It’s these variations that add character to the wood and enhance its decorative value. Wood placed in the environment and exposed to oxygen and light can cause these natural colour variations can significantly change. Often blonde woods acquire a yellowish tint and red woods become browner.

Stains And Leaching Due to Water

If processed wood is exposed to moisture (e.g. rain, or high humidity) in the environment some of the extractive may leach to the surface, and dissolve, creating watermarks. If the extractives runoff the surface of the wood they can actually stain surrounding surfaces like concrete, tiles and pavers.

Tannins (polyphenols) in particular are likely to react with alkaline surfaces such as concrete to form an unsightly red/brown stain. If left alone to weather, the level of extractive runoff will reduce and result in a significant reduction in ongoing staining over time. Chemical cleaning and removal of these stains is a simple and easy process with CUTEK® Wood Reviver.

Stains Caused by Chemical Reaction with Iron

Many wood species have a high tannin content. If the wood gets wet the tannins can react with iron to form black and insoluble iron stain.

This can cause dark discolourations that can appear suddenly. These stains are often caused as a result of contact with a steel blade or tool during processing or fixing. The stains are limited to the surface and can be cleaned and removed easily.

More information on iron stain is available in section labelled Iron Stain.

Pre-Cleaning Susceptible Woods

If you’re using wood with a high level of extractives and fixing it in a wet environment, we recommend a pre-clean using CUTEK® Wood Reviver prior to coating with CUTEK® Extreme.

While we can’t offer a 100% guarantee due to the varied nature of wood, in our experience a pre-clean helps reduces the chance of stains and helps minimize any stains that do occur.

Removing Stains and Leachate

Easily remove iron tannates on wood and leachates on adjacent surfaces with CUTEK® Wood Reviver. Follow the procedures in the CUTEK® Wood Reviver factsheet for the best result.

Iron stain is an unsightly blue–black or grey discolouration that is often incorrectly described as “mould” because of its frequently “spotty” appearance. Iron stain can occur on nearly all woods, however some wood species are particularly prone to iron stain because they contain large amounts of tannin-like extractives. The discolouration is usually caused by a chemical reaction between extractives and iron content in steel products, such as nails, screws, and other fasteners. Steel used in contact with wood must be protected from corrosion by using stainless steel or processes such as hot dip galvanizing. Problems with iron contamination can come from traces of iron left on wood from cutting, grinding or slicing; cleaning the surface with steel wool, wire brushes, or iron tools; using finishes stored in rusty containers; and using previous iron-containing or iron-contaminated finishes. Iron dust from metalworking and even plant fertilizers can be sources of iron along with removal of old rusted eavestrough, handrail construction and contact by steel capped boots. Merely striking wood with a hammer can cause iron stain on some wood types. Urine on wood floors will also hasten the reaction with iron and wood extractives, producing the typical iron stain discolouration. Unprotected wood that get wet on or off site prior to installation is particularly vulnerable as the water-soluble extractives are more readily mobilized to react with any iron contamination.

Testing For Iron Stain

A simple test can be used to determine whether wood discolouration is caused by iron. Apply undiluted CUTEK® Wood Reviver, scrubbing into the stained wood surface. If the solution removes the stain after approximately one hour, then iron is present on the wood. If the solution does not remove the stain, contact your CUTEK® representative to troubleshoot your issue. If the iron stain is spotty, try to view the stained wood under a 10x magnifying glass. “Chunky” discolouration is usually a result of molten metal and looks like clinkers from a grinding operation. Stain that resembles slivers or flakes could be from steel wool. An even discolouration throughout the stain indicates that the iron was in solution when it contaminated the wood, probably in a contaminated finish or iron contaminated water.

Removing Iron Stain

It is easy for iron to contaminate wood, as there are so many possible sources of iron contamination on a building site that are often not initially recognized. To remove iron discolouration, scrub stained wood with undiluted CUTEK® Wood Reviver and leave to soak for one hour. After one hour thoroughly rinse the surface with a pressure washer to remove the CUTEK® Wood Reviver. It is very important to rinse the CUTEK® Wood Reviver off thoroughly because if all sources of iron are not removed or protected from corrosion, staining will occur again. In other words, treatment with CUTEK® Wood Reviver is only a temporary solution if iron remains on or in the wood. CUTEK® Wood Reviver reacts with iron tannates to form a colourless complex. In time, the residual unrinsed CUTEK® Wood Reviver/iron complex will break down, permitting the iron to react with the extractives to form a dark-coloured stain again, which is why it is important to rinse thoroughly.

Wood is divided, according to its botanical origin, into two kinds: softwoods from coniferous trees and hardwoods from broadleaved trees. Structurally softwoods are generally simple in structure and lighter, whereas hardwoods are generally complex in structure and heavier. Softwood (like pine) is much lighter and easier to process than the heavy hardwood (like oak). The density of softwoods generally ranges between 350-700 kg/m³, while hardwoods are 450-1250 kg/m³. Both consist of approximately 12 % moisture. Due to the more dense and complex structure of hardwood, the permeability is very low in comparison to softwood, thus making it more difficult to dry. The lumber of living trees and freshly felled logs contains a large amount of water, which often constitutes more weight than the actual wood. Water has a significant influence on wood. Wood continually exchanges liquid and gas phase moisture (water) with its surroundings, although the rate of exchange is strongly affected by the degree wood is sealed. Dried wood that is coated with deeply penetrating hydrophobic (water resisting) CUTEK® Extreme demonstrates a dramatically slowed rate of moisture exchange.

Why Do We Dry Wood?

Drying, if carried out promptly after the felling of trees, protects wood against primary decay, fungal stain and attack by certain kinds of insects. Organisms, which cause decay and stain, generally cannot thrive in wood with a moisture content below 20%. Several, though not all, insect pests can live only in green wood. Dried wood is less susceptible to decay than green wood (above 20% moisture content). Apart from the above important advantages of drying timber, the following points are also significant:

• Dried wood is lighter, and hence the transportation and handling costs are reduced
• Dried wood is stronger than green wood in most strength properties
• Woods for impregnation with products have to be properly dried if proper penetration is to be accomplished, particularly in the case of oil-type products
• In the field of chemical modification of wood and wood products, the material should be dried to a certain moisture content for the appropriate reactions to occur
• Dry wood works, machines, finishes and glues better than green wood. Paints and finishes last longer on dry wood
• The electrical and thermal insulation properties of wood are improved by drying

Fibre Saturation Point

Fibre saturation point is a term used in wood mechanics and especially wood drying, to denote the point in the drying process at which only water bound in the cell walls remains – all other water, called free water, having been removed from the cell cavities. Further drying of the wood results in strengthening of the wood fibres, and is usually accompanied by shrinkage. Wood is normally dried to a point where it is in equilibrium with the atmospheric moisture content or relative humidity, and since this varies so does the equilibrium moisture content.

Equilibrium Moisture Content

Wood is a hygroscopic substance. It has the ability to take in or give off moisture in the form of vapour. The water contained in wood exerts a vapour pressure of its own, which is determined by the maximum size of the capillaries filled with water at any time. If the water vapour pressure in the ambient space is lower than the vapour pressure within wood, desorption takes place. The largest sized capillaries, which are full of water at the time, empty first. The vapour pressure within the wood falls as water is successively contained in smaller and smaller sized capillaries. A stage is eventually reached when the vapour pressure within the wood equals the vapour pressure in the ambient space above the wood, and further desorption ceases. The amount of moisture that remains in the wood at this stage is in equilibrium with the water vapour pressure in the ambient space, and is termed the equilibrium moisture content or EMC. Because of its hygroscopicity, wood tends to reach a moisture content that is in equilibrium with the relative humidity and temperature of the surrounding air. The EMC of wood varies with the ambient relative humidity to a lesser degree with the temperature. EMC also varies very slightly with species, mechanical stress, drying history of wood, density, extractives content and the direction of sorption in which the moisture change takes place (i.e. adsorption or desorption).

Moisture Content Of Wood In Service

Wood retains its hygroscopic characteristics after it is put into use. It is then subjected to fluctuating humidity, the dominant factor in determining its EMC. These fluctuations may be more or less cyclical, such as diurnal changes or annual seasonal changes. In order to minimize the changes in wood moisture content or the movement of wooden objects in service, wood is usually dried to a moisture content that is close to the average EMC conditions to which it will be exposed. These conditions vary for interior uses compared with exterior uses in a given geographic location. The primary reason for drying wood to a moisture content equivalent to its mean EMC under use conditions is to minimize the dimensional changes (or movement) in the final product. Dried wood that is coated with CUTEK® Extreme is less susceptible to dimensional changes because the deeply penetrating hydrophobic (water resisting) nature of CUTEK® Extreme minimizes the free absorption and desorption of liquid and gas phase moisture.

Shrinkage and swelling may occur in wood when the moisture content of wood changes. Shrinkage occurs as moisture content decreases, while swelling takes place when it increases. Volume change is not equal in all directions. The greatest dimensional change occurs in a direction tangential to the growth rings. Shrinkage from the pith outwards, or radially, is usually considerably less than tangential shrinkage, while longitudinal (along the grain) shrinkage is so slight as to be usually inconsequential.

The longitudinal shrinkage is 0.1 to 0.3%, in contrast to tangential shrinkages, which is 2-10%. Tangential shrinkage is often about twice as great as in the radial direction, although in some species it may be as much as five times as great. The shrinkage is species dependent and can be typically 5 to 10% in the tangential direction and 2 to 6% in the radial direction.

Dried wood that is coated with CUTEK® Extreme is less susceptible to dimensional changes because the deeply penetrating hydrophobic (water resisting) nature of CUTEK® Extreme minimizes the free absorption and desorption of liquid and gas phase moisture therefore assisting with maintaining the dimensional integrity of moisture stabilized wood.

Factors Affecting the Dried Appearance, and Dimensional Integrity of Wood

Factors that significantly affect the drying, appearance and dimensional integrity of dried wood are:

• The species; because of the variations in physical, mechanical and moisture transport properties between species
• The thickness of the wood; because the drying time is approximately proportional to thickness and, to some extent, is also influenced by the width of the wood
• Whether the boards are quarter-sawn, back-sawn or mixed-sawn; because sawing pattern influences the distortion due to tangential and radial shrinkage. This leads to warping, cupping, bowing, twisting, spring and diamonding. (see image)
• Defects that arise due to uneven drying such as rupture of the wood tissue, checks (surface, end and internal), end splits, honey-combing, case hardening and collapse.

STEP 1 > PREPARE

It is important for the user to determine the suitability of the CUTEK® Wood Reviver for its intended application. ALWAYS test product on a small test area prior to applying to any large sections. As the species and condition of wood can vary significantly, testing will enable you to accurately estimate the dilution, working time and amount of CUTEK® Wood Reviver required to complete your project.

Safety and precautions:

Before you begin to Prepare and Protect your wood, note the hazards and precautions and ensure that you have obtained and know how to use the correct safety equipment as detailed in the Safety Data Sheet.

When using CUTEK® Wood Reviver, all adjacent surfaces and vegetation must be adequately protected. It is also important to be aware of the potential for wind drift into areas with cars or pedestrian traffic when rinsing. Water flush all equipment, vegetation, paths, concrete, asphalt and other adjacent surfaces before and after contact.

How to Apply:

Dilution and Coverage:

IMPORTANT: These figures represent typical averages for common decking and cladding species and are to be used as a guideline only

CUTEK® Wood Reviver is a powerful wood restoring agent and can be used diluted or undiluted. Dilution and coverage can vary depending on the smoothness and density of your wood as well as the severity of staining and/or weathering. Always test to determine if your chosen dilution is effective in the restoration of your specific wood.

Application:

If required, dilute the CUTEK® Wood Reviver concentrate with water; refer to dilution guidelines and complete a test patch to ensure the right dilution for your wood.

Wet your wood prior to applying CUTEK® Wood Reviver. Apply CUTEK® Wood Reviver liberally to wetted wood with a brush, roller, broom or low-pressure garden sprayer.

Let CUTEK® Wood Reviver do the work by leaving it on the surface for 1 hour to 24 hours depending on the severity of staining or discolouration. It may be necessary to scrub stubborn stains moderately with a stiff fibre brush.

Removal:

Rinse off thoroughly, using a pressure washer set to approximately 50 bar (750 p.s.i.) with a fan jet pattern. REMOVAL WITH A GARDEN HOSE IS NOT SUFFICIENT.
CAUTION must be used to avoid damage to the wood fibre and ‘furring up’. Adjust your cleaning process by reducing the pressure or your operating distance from the wood. DO NOT use “turbojets” on wood.

Rinse from the highest point and work down methodically using long even strokes in the direction of the grain, until there is minimal to no sudsing. The longer that CUTEK® Wood Reviver is left on the wood, the greater the rinse time required.

Note: certain types of wood surfaces may leave a raised grain effect after pressure washing is completed. Sanding or poly pad scrubbing may be required to smooth out this condition.

Clean Up:

Equipment may be cleaned with water. Ensure wash water is disposed in accordance with local regulations.

STEP 1 > PREPARE

Before Applying:

It is important for the user to determine the suitability of CUTEK® Wood Stripper for its intended application. ALWAYS test product on a small test area. The coatings to be stripped can vary significantly, testing will enable you to accurately estimate the working time, and amount of CUTEK® Wood Stripper required to complete your project.

NOTE: CUTEK® Wood Stripper may need to be applied more than once to thick paint or film form coatings with many layers.

Safety and Precautions:

Before you begin to Prepare and Protect your wood, note the hazards and precautions and ensure that you have obtained and know how to use the correct safety equipment as detailed in the Safety Data Sheet.

When using CUTEK® Wood Stripper, all adjacent surfaces and vegetation must be adequately protected. It is also important to be aware of the potential for wind drift into areas with cars or pedestrian traffic when rinsing. Water flush all equipment, vegetation, paths, concrete, asphalt and other adjacent surfaces before and after contact.

Coverage:

Spreading rate is approximately 3 m²/L or 120 ft²/US gal

NOTE: this can vary significantly depending on the type and thickness of the paint or wood coating being removed.

Application:

CUTEK® Wood Stripper should be used as supplied. Stir/shake well, then apply CUTEK® Wood Stripper evenly with a brush, roller or paint pad applicator to dry wood, rubbing into the grain. Reaction time is approx. 30-60 minutes. Keep area wet and activated by applying more CUTEK® Wood Stripper or by agitating the application area with a brush or roller for the duration determined by testing.

Test periodically with a paint scraper to determine when the old coating is stripping cleanly off the wood. When this happens, the stripped surface is ready for rinsing. We suggest that you try to strip only 1m² or 10 ft² first.

Removal:

Rinse off thoroughly, using a pressure washer set to approximately 50 bar (750 p.s.i.) with a fan jet pattern. REMOVAL WITH A GARDEN HOSE IS NOT SUFFICIENT.
CAUTION must be used to avoid damage to the wood fibre and ‘furring up’. Adjust your cleaning process by reducing the pressure or your operating distance from the wood. DO NOT use “turbojets” on wood.

Clean from the lowest point and work upwards methodically using long even strokes in the direction of the grain. If cleaned from the highest point first, the product below can become sticky and difficult to remove.

After stripping the wood, clean it with CUTEK® Wood Reviver to remove residual CUTEK® Wood Stripper and rejuvenate the substrate and enhance the grain. See CUTEK® Wood Reviver for instructions.

Certain types of wood surfaces may leave a raised grain effect after stripping is completed. Sanding or poly pad scrubbing may be required to smooth out this condition.

Clean Up & Disposal:

Equipment may be cleaned with CUTEK® Quickclean or soap/detergent and water. All wash water, containers/contents should be disposed in accordance with local regulations

STEP 1 > PREPARE

It is important for the user to determine the suitability of CUTEK® Quickclean for its intended application. ALWAYS test product on a small test area, referring to the dilution guidelines, before making a full mixture and applying to any large sections. As the surface types and conditions can vary significantly, testing will enable you to accurately estimate the dilution ratio, working time, and amount of CUTEK® Quickclean required to complete your project. It will also enable you to perfect the cleaning technique that works best for your situation.

Safety and Precautions:

Before you begin to Prepare and Protect your wood, note the hazards and precautions and ensure that you have obtained and know how to use the correct safety equipment.

When using CUTEK® Quickclean all adjacent surfaces and vegetation must be adequately protected. It is also important to be aware of the potential for damaging wind drift into areas with cars or pedestrian traffic when rinsing. Water flush all equipment, vegetation, paths, concrete, asphalt and other adjacent surfaces before and after contact.

How to Apply:

Dilution and Coverage:

IMPORTANT: These figures represent typical averages for common substrates and are to be used as a guideline only

CUTEK® Quickclean is a powerful general-purpose outdoor cleaner that should be diluted. Dilution and coverage can vary depending on the type of surface being cleaned and the build-up of dirt/grease on the substrate. Always test prior to making a full mixture to determine if dilution being used is effective in cleaning on your specific surface.

Application:

Dilute the CUTEK® Quickclean concentrate with water as required and complete a test patch to ensure that the dilution being used is effective in cleaning.

Wet your substrate with water prior to applying CUTEK® Quickclean. Apply diluted CUTEK® Quickclean liberally with a brush, roller, broom or low-pressure garden sprayer. Let CUTEK® Quickclean do the work by leaving it on the surface for 5 to 15 minutes depending on the severity of dirt/soiling/grease. It may be necessary to scrub stubborn stains moderately with a stiff fibre brush.

Removal:

Once CUTEK® Quickclean has cleaned the substrate, it must be water rinsed off thoroughly. For best results, rinse using a pressure washer set to approximately 50 bar (750 p.s.i.) with a fan jet pattern.
CAUTION must be used to avoid damage to the wood fibre and ‘furring up’. Adjust your cleaning process by reducing the pressure or your operating distance from the wood. DO NOT use “turbojets” on wood.

Rinse from the highest point and work down methodically using long even strokes in the direction of the grain.

Where pressure washing is not practical, rinse off with clean water from a bucket or a garden hose using a light scrubbing action with a stiff brush.

Clean Up:

Equipment may be cleaned with water. Ensure wash water is disposed in accordance with local regulations.