Mathys Fassitek Aqua Opaque


We no longer stock this product, but can recommend Remmers Aqua VL-66/sm-Venti Coat 3in1 as a great alternative.

Product not available
This Product has been Discontinued


We no longer stock this product; please contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to find an alternative product.

Mathys Fassitek Aqua Opaque

Water based durable and low sheen opaque exterior wood finish. Fassitek® Aqua Opaque offers a durable protection whilst the wood structure stays visible.

  • Can be used as a primer or as a finishing layer
  • Enhances the wood structure and grain
  • Good outdoor durability, weatherproof
  • Microporous – allows wood to breathe
  • Flexible system
  • Damp regulating - waterproof
  • Is resistant to dirt
  • Easy to maintain
  • Easy to apply
  • Excellent coverage and flow
  • Quick drying, can be painted over after 2 hours
  • Can be tinted in virtually any colour

Technical Data

  • Density: 1,10-1,25
  • Gloss Level: Satin
  • Solids content in volume: 42-47 %

Drying Times At 20°C/RH 50%

  • Dry to recoat: Minimum 2 hours
  • Fully cured: 4 hours

Theoretical Consumption

  • Sawn : 4-8 m²/litre.
  • Planed: 8-12 m²/litre

Practical Consumption

Practical coverage dependson many fac-tors such as porosity and roughness of the substrate and material losses during appli-cation.

Surface Preparation 

It is recommended that all non-durable timber for outer use should be treated with a preserva-tive. Wood should be un-weathered, bare, dry, free of mould, dirt, bark, paint, varnish or polish.Rough-sawn wood should be treated. Moisture content should be less than 21% at the time of treatment. Avoid application of Fassitek Aqua Opaque on (horizontal) surfaces containing moisture. Remove fungi with a suitable cleaning agent. Wood should be degreased, then care-fully sanded and dedusted.

Application Conditions

> 10°C,<30°C en < 80% r.h.The temperature of the substrate should be at least 3°C above the dew point. Always apply the wood stain under conditions facilitating drying times, if possible when no wind is present. It may not rain during the first three hours of drying time


Fassitek Aqua Opaque is not suitable for surfaces subject to heavy continuous wear, eg. from foot traffic.It is suitable for greenhouses and animal quarters. Withhold plants and animals out of this area during drying time. Apply a third coat on horizontal surfaces such as windowsills. Fassitek Aqua Opaque is compatible with protection treatments without water repelling additives.If you should use the wood stain on coniferous wood, we recommend to insulate the knots prior to application, especially when using bright colours. A discoloration as a result of resin bleeding may be possible.

Product Details

Data sheet

Brush, Roller
Fully Cured (at 20°C)
4 hours
4m² per litre
Max. Application Temperature
Min. Application Temperature
Solids by Volume
42-47 %
130 g/l
Shelf Life (from date of manufacture)
2 years from date of production in unopened cans, if stored in dry, well ventilated areas,not in direct sunlight at temperatures between 5°and 35°C.
Recommended Dry Film Thickness
35-45 µm
Recommended Wet Film Thickness
80-100 µm
UN Number
Not regulated

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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