Capadur TwinProof

Transparent, water-thinnable wood stain (wood glazing) with a high protective effect against UV light and moisture. For exterior use on dimensionally stable or limited stable wood and for dimensionally unstable wooden parts.
  • LV Texte

    Field of Application

    Transparent wood stain (wood glazing) with a high protective effect against UV light and moisture.
    Applicable on dimensionally stable wood, e.g. doors and windows, on limited dimensionally stable wood, e.g. wooden boards with tongue and groove, shutters, gates, etc., and suitable for coating dimensionally unstable wooden parts, e.g. panelling, balustrades, fences, etc. 

    Use Capadur TwinProof preferably for bright conifers, such as pines, spruces and fir trees.
    Test application is advisable before applying on dark wood (see below "Colours, Note:").

    Capadur TwinProof is provided with a preservative against deterioration in the coating film due to fungal (fungi/mildew/mould) and algal attack. The film preservative has a delaying effect to infestation. On highly endangered wooden parts like soffits of flat roofs or plate-type boards (e.g. made of maritime pines) a premature infestation must be considered, depending on the biological loads on site, even before expiration of usual warranty time. 
    The product cannot be used for wood with permanent contact to water and ground/soil.

    Only to be used for exterior substrates, due to the content of film preservation. The interior surfaces of exterior windows and doors belong to the exterior surfaces and can be coated on all sides.

    Material Properties

    • High transparency.
    • UV protection due to nanotechnology.
    • Moisture proofing due to providing a water-repellent surface (hydroperl: water droplets roll off effect).
    • Provided with a preservative against deterioration in the coating film due to fungal attack (fungi/mildew/mould).
    • Thin film woodstain (wood glazing), allows easy renovation.
    • Water-thinnable/-dilutable.
    • Polyurethane modified.
    • Non-blocking. 
    • Low dripping consistency.

    Material Base / Vehicle

    Acrylic dispersion/emulsion

    Packaging/Package Size

    1 litre, 5 litres and 25 litres


    Colourless with a high transparency. 

    The impression of colour shade and gloss level are influenced by the condition of the wood surface
    as well as the number of coats and the quantity of applied product.

    UV protection is achieved using micronised titanium dioxide.  This may lead to a whitish shade on dark wood or when applying higher quantities of product. Furthermore, discolouration may occur on wood with a high content of ingredients, e.g. oak. Hence a preliminary test application on such wood is advisable.

    Gloss Level

    Silk-matt/semi-gloss (mid sheen / velvet or eggshell-like finish)


    Keep in a dry, cool and frost-free place.
    Shelf life: Min. 2 years in the original, tightly closed can.


    Approx. 1.0 g/cm³

    Suitability according to Technical Information No. 606 Definition of Application Areas

    Interior 1Interior 2Interior 3Exterior 1Exterior 2
    (–) inapplicable / (○) of limited suitability / (+) suitable

    Suitable Substrates

    Stable wood, limited dimensionally stable wood and dimensionally unstable wooden parts. 
    The substrate must be clean, sound/stable, dry, and free from all substances that may prevent good adhesion. 
    Wood moisture content (WMC): Maximum permissible WMC of dimensionally stable wood: 13 %; limited dimensionally stable or unstable wood: 15 %.

    Follow the principles of constructional wood preservation. They are the basis for longlasting wood preservation with coating materials. Follow BFS Data Sheet No. 18 section 2.2.3. for applying the product on panel-like derived timber products, e.g. solid wood, veneer layered plywood, particle boards or wood fibreboards.

    Advice for the upkeep of coated wooden parts:
    A long-term maintenance of value is only achievable by professional upkeep at regular intervals.
    In Germany: Follow the advice given in BFS Data Sheet No. 18, affix C.

    Substrate Preparation

    Existing Wood:
    Sand (abrade/grind off) greyed, weathered surfaces to the stable, solid substrate and clean the surface. Impregnate with Capacryl Holzschutz-Grund.

    New Wood:
    Sand even, planed surfaces in fibre direction, clean thoroughly and remove seeping wood contents,
    e.g. wood resin/rosin. Impregnate with Capacryl Holzschutz-Grund.

    Preparation of Material

    Capadur TwinProof is ready to use, but should be stirred before applying.
    Brush application: Use special brushes for applying acrylic enamels (mixture of polyester and natural bristles, e.g. Orelmix).
    Roller application: Use short pile polyamide roller.
    Capadur TwinProof is provided with a preservative against deterioration in the coating film due to fungal and algal attack and can only be applied by spraying equipment within closed sites.

    Surface Coating System

    Substrate Preparation
    Priming Coat
    Intermediate CoatFinishing Coat
    Uncoated wooden partsonly exterior1)BFS Data Sheet No. 18Capacryl HolzschutzGrund
    Capadur TwinProof
    Capadur TwinProof
    Capadur TwinProof
    1) Interior surfaces of exterior windows and doors belong to exterior surfaces.


    70 - 100 ml/m2 per coat.
    Consumption is influenced by the substrate condition, e.g. roughness or absorbency.
    The exact consumption is best established by a trial coating (test area) on site.

    Application Conditions

    Lower Temperature Limit for Application and Drying:
    + 8 °C for product, substrate and ambient air.

    Drying/Drying Time

    At 20 °C and 65 % relative humidity the subsequent coat can be applied  after 1 hour, at the earliest. Stacking of coated parts: after 8 hours, at the earliest. Completely dry after approx.
    2 days.  The drying time is extended at lower temperatures and higher humidity or in case of insufficient air exchange, e.g. when boards are packed closely.

    Tool Cleaning

    Immediately after use with water.

    Please Note (Status as at Date of Publication)

    Keep out of reach of children. If swallowed, seek medical advice immediately and show the container or label (intestinal bacteria can be affected). Do not empty into drains, water courses or into the ground. Apply by brush or paint roller only. Use P2 dust filter for grinding. Ensure good ventilation during use and drying. Do not eat, drink or smoke while using the paint. In case of contact with eyes or skin, immediately and thoroughly rinse with water. Contains CG22-1130 (UV absorber), Bis(1,2,2,6,6-pentamethyl-piperidyl)sebacat. May produce an allergic reaction.


    Materials and all related packaging must be disposed of in a safe way in accordance with the full requirements of the local authorities. Particular attention should be made to removing wastage from site in compliance with standard construction site procedures. 
    In Germany: Only completely emptied cans/containers must be given for recycling. Dispose containers with residues of liquid product via waste collection point accepting old paints and enamels. Dispose dried/hardened product residues as construction site/demolition/municipal or domestic waste.

    EU limit value for the VOC content

    of this product (category A/e): max. 130 g/l (2010). This product contains max. 60 g/l VOC.

    Product Code Paints and Enamels

    M-KH01 F

    Substances of Content - Declaration

    Polyacrylic resin, titanium dioxide, water, glycolether, esteralcohol, additives, preservatives (methyl-/benzisothiazolinone), film preservative.  According to European Regulation 528/2012 this product is defined as a "treated article" (not a biocidal product) and contains the following biocidal substance: Iodpropinylbutylcarbamate (CAS No 55406-53-6).

    Further Details

    See Material Safety Data Sheet (MSDS).

    Customer Service Centre

    Tel.: +49 6154 71-71710
    Fax: +49 6154 71-71711

    International Distribution: Please see

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