Article No. 390620
Water-based stain with film preservative for VACUMAT® processing
Product specifications
On delivery
The stated values represent typical product characteristics and are not to be construed as binding product specifications.
Field of application
- For use on exterior wood
- Softwood, preferably spruce/fir
- Building elements with no or limited dimensional stability
- Industrial series production (vacuum procedure)
- Primer, intermediate and finishing coats
Properties
- Good flow properties
- Quick-drying
- Early block resistance
- Water vapour diffusion capable
- Weatherproof and moisture-regulating
- Film preserver protects against microbial damage
- Special combination of binding agents creates an extremely hard-wearing surface
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Preparation
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Substrate requirements
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%
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Preparations
If necessary, impregnate non-resistant woods with a wood preservative* (*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".
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).
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Application
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Stir well, including during application or after a break in work.
Once dry, apply further coatings.
Seal opened containers well and use contents as soon as possible.
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Application instructions
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Check colour, adhesion and compatibility with the substrate by setting up a trial area.
Before coating technically modified woods and wood-based materials, apply the product to a trial surface and conduct a suitability test on the desired area of use.
Ensure good ventilation.
Do not use in direct sunlight.
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Drying
Dust-dry: after approx. 1 hour
Ready for overcoating: after approx. 4 hours
(at 20 °C and 65% RH)
If forced drying is used, ready for overcoating: depending on the system after approx. 20 minutes / the workpiece must be cooled to < 25 °C before packing.Low temperatures, poor ventilation and high humidity delay drying.
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Thinning
If necessary with water (max. 5%).
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Working tools / cleaning
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VACUMAT®, spraying equipment
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Clean tools with water or Aqua RK-898 Cleaning Concentrate immediately after use.
Ensure that any residue from cleaning is disposed of correctly.
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Storage / shelf life
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If stored unopened in its original container in a cool, dry place and protected against frost, the product will keep for at least 12 months.
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Usage
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Approx. 80 ml/m² per coat in at least 2 coats
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General information
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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.
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Disposal instructions
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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.
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Safety / regulations
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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.
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