Article No. 344001
Water-based special coating to prevent bleeding of substances in wood
The stated values represent typical product characteristics and are not to be construed as binding product specifications.
Field of application
- Primer and intermediate coat
- For use on interior and exterior wood
- Dimensionally stable wood building elements: e.g. windows and doors
- 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
- Highly opaque
- Weatherproof and moisture-regulating
- Reduces yellow stains caused by water soluble substances in the wood when light shades of finishing coat are used
Dimensionally stable wood building elements: wood moisture content 11-15%
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 loose knots and any surface resin with a suitable product (e.g. thinner or brush cleaner).
Pre-treat exterior wood which requires protection against rot and blue stain with Wood Protection Primer.* (*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".
Apply with a brush, roller or by spraying.
Re-coat once dry.
Use the material in undiluted form.
Check the product’s compatibility with the substrate, adhesion and sealing effect by applying a trial coat.
Ensure sufficient ventilation when applying indoors.
Do not use on wood impregnated with boron salts.
Initially dry: approx. 1 hour
Can be sanded after: approx. 4 hours
Can be overcoated after: approx. 12 hours
Practice values at +20 °C and 65% relative humidity.
Longer drying times can improve the sealing effect.
The product’s insulating effect may be impaired if it is diluted too thinly, if the wood is too wet or if the recommended coating sequence, application volumes and drying times are not observed. With water-based coating systems, there is always the residual risk that substances contained in the wood will leach out.
Ready to use
Working tools / cleaning
Acrylic brush, flat brush, mohair roller, foam roller, suitable spraying equipment
Clean tools immediately after use with water and detergent.
Ensure that any residue from cleaning is disposed of correctly.
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.
2 x approx. 70 - 80 ml/m²
Using less than the recommended application quantity will lead to a poorer sealing effect.
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.
Observe the regulations concerning design principles for wood protection.
Do not use on horizontal surfaces without drainage slopes and without edge radius, avoid accumulated moisture.
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.