Article No. 321203
Water-based grey stain made from renewable raw materials for interior and exterior wood
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The stated values represent typical product characteristics and are not to be construed as binding product specifications.
Field of application
- For use on interior and exterior wood
- Wood building elements with limited dimensional stability, e.g. folding shutters, matchboarding, summerhouses
- Wood building elements with no dimensional stability: e.g. fences, framework, carports, planking
- Wooden beehives, bee boxes and other wooden elements used in beekeeping
- Natural grey tones for wood
- Even colour tone across areas exposed to weathering and areas sheltered from weathering
- Made from at least 80% renewable raw materials
- Bee-friendly formula
- Water-based with a very low solvent content
- Good flow properties
The substrate must be clean, dry, free of dust, grease and loose substances, and prepared in the correct manner.
Wood building elements with limited or no dimensional stability: wood moisture content max. 18%
Thoroughly remove any dirt, grease and non-adhering old coatings.
Sand grey and weathered wood surfaces down to sound, bright wood.
Remove any loose and torn knots as well as resin that bleeds from the wood and clean with a suitable product (e.g. V 101 Thinner, a nitrocellulose or universal thinner).
Wood building elements should be constructed so they shed and do not retain water (avoid level surfaces, open end-grain wood, capillary joints, water and moisture accumulation points, contact with splash water, sharp edges), thereby reducing the need to use wood preservatives as far as possible.
Exterior wood that needs to be protected against soft rot and blue stain must be pre-treated with a suitable wood preservative* - not necessary for interior wood (*Use biocides safely. Always read the label and product information before use).
Observe BFS Code of Practice No. 18 "Coatings on Wood and Wooden Working Materials in Outdoor Areas".
Thoroughly sand any old coatings that are still intact.
Temperature of the material, air and substrate: from min. +5 °C to max. +25 °C
Application by brush, spraying
Apply in the direction of the grain.
Flow cup gun: nozzle: 1.6 mm; spraying pressure: 2.5–2.8 bar
Airmix spraying: nozzle size: 0.23 - 0.28 mm, material pressure: 80 - 100 bar, atomiser air pressure: 1.2 - 2 bar.
Airless spraying: nozzle size: 0.38 mm; spraying pressure: 80-100 bar (use yellow pistol filter)
Apply a second coat once the first has dried.
Apply a further coat if required.
Protect end-grain surfaces against water ingress by applying multiple coats of the material in the corresponding colour. Alternatively, coat the end-grain surfaces with Induline SW-910 before applying the final coat.
Seal opened containers well and use contents as soon as possible.
Check colour, adhesion and compatibility with the substrate by setting up a trial area.
Pre-testing is recommended also on other woods.
Substances in oak may bleed, causing dark discolouration, when coated with water dilutable dispersion stains.
Areas that are being coated or dried should be protected against rain, wind, sunlight and condensation.
Rainfall may cause water soluble substances to bleed from wood that is rich in such substances, e.g. oak, red cedar, afzelia, redwood, etc. This may lead to the discolouration of light-coloured masonry or render.
Dust-dry: after approx. 1 hour Ready for next coat: after approx. 8 hours
Practice values at +20 °C and 65% relative humidity.
Low temperatures, poor ventilation and high humidity delay drying.
Drying may take longer depending on the type of wood, e.g. oak, due to substances it contains.
Ready to use
Working tools / cleaning
Brush with synthetic bristles, surface brush, flow cup gun, airless/airmix spraying equipment
Clean tools with water or Aqua RK-898 Cleaning Concentrate immediately after use.
Ensure that any residue from cleaning is disposed of correctly.
As contaminated fabrics can have a tendency to spontaneously combust, soak them in water before gathering them together under water in fireproof bins and disposing of them.
Storage / shelf life
If stored unopened in its original container in a cool, dry place and protected against frost, the product will keep for at least 24 months.
Approx. 60 ml/m² per coat Min. 2 coats
In principle, the product is also suitable for use on wood rich in substances (e.g. oak, robinia, acacia). However, reactions with the water-soluble substances in the wood may occur that result in discolouration of the coating film and thus an impaired optical appearance (this is particularly true of white and grey shades).
On planed larch and softwoods with a high resin content, the coating may have reduced adhesion and resistance to weathering. This is especially the case on horizontal year rings, knots and areas of winter growth that are high in resin. Maintenance and renovation must be carried out more frequently on these surfaces. The only remedy for this is pre-weathering or very coarse sanding (P80). If these wood types are rough-sawn, considerably longer maintenance and renovation intervals are to be expected.
Larger quantities of leftover product should be disposed of in the original containers in accordance with the applicable regulations. Completely empty, clean containers should be recycled. Do not dispose of together with household waste. Do not allow to enter the sewage system. Do not empty into drains.
Safety / regulations
For further information on the safety aspects of transporting, storing and handling the product and on disposal and environmental matters, please see the current Safety Data Sheet.