Article No. 771001

Aqua OML-48/tm Medium Build Oil Stain [eco]

Water-based stain made from renewable raw materials for interior and exterior wood

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Colour: clear | 7710
Colour: clear | 7710
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Discontinued product This container size is being phased out and is only available to a limited extent.

Product specifications

On delivery

Binder Based on plant oils
Density (20°C) Approx. 1.02 g/cm³
Odour Mild
Degree of gloss Cloth matt
Viscosity 300 mPas

The stated values represent typical product characteristics and are not to be construed as binding product specifications.

Field of application

  • For use indoors and outdoors
  • for dimensionally stable elements
  • for elements with limited dimensional stability
  • for not dimensionally stable elements
  • For professional users only
  • 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
  • Wooden beehives, bee boxes and other wooden elements used in beekeeping


  • Water-based
  • Water-based with a very low solvent content
  • Block resistant (in accordance with Code of Practice HO.03)
  • Non-drip
  • Good flow properties
  • Weather-resistant and UV-resistant
  • Made from at least 80% renewable raw materials
  • Bee-friendly formula
  • Preparation
    • Substrate requirements

      The substrate must be clean, dry, free of dust, grease and loose substances, and prepared in the correct manner.

      Dimensionally stable wood building elements: wood moisture content 11-15%

      Wood building elements with limited or no dimensional stability: wood moisture content max. 18%

    • Preparations

      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.

  • Application
    • Application temperature: min. 10 °C max. 25 °C
    • Stir before use
    • Airless/airmix spraying / Flow cup gun / By brush
    • Stir well.

      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.

      Use material with the same batch number on contiguous surfaces (mix material of different batches beforehand), otherwise slight differences in colour, gloss and texture may occur.

      Seal opened containers well and use contents as soon as possible.

  • Application instructions
    • Drying time: can be worked over after 8 h
    • 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.

      Do not use below +5 °C

      If the temperature is too low or the humidity too high, it will take longer for the material to reach the desired properties.

      Each layer of stain results in a more intense colour and a glossier finish.

      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.

      Only use the clear and white versions for exterior surfaces that are not exposed to direct weathering, such as soffits, etc.

      Due to the different covering properties of white and pastel varnish colours, the optical appearance may vary depending on the substrate. It must be checked in advance whether discolouration of the varnish may occur due to substances contained in the wood.

      Due to the low UV protection of these colour shades, shorter maintenance intervals must be expected.

      In order to take account of and clarify these issues, a trial surface must be prepared in order to ensure that the surface meets expectations.

    • Drying

      Dust-dry: after approx. 1 hour
      Overcoating: 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.

    • Thinning

      Ready to use.

  • Working tools / cleaning
    • Airless/airmix spraying / Flow cup gun / By brush
    • Paintbrush with acrylic bristles, flat 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
    • Store frost-free and cool / protect for moisture / close containers
    • Shelf-life 24 months
    • 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.

  • Usage
    • Approx. 60 ml / m² per layer applied
    • Approx. 60 ml/m² per coat
      Min. 2 coats

  • General information
    • DIN EN 71-3 "Migration of certain elements":

      This product complies with the limits for the migration of heavy metals to children's toys according to DIN EN 71-3 and thus fulfils one of several further requirements for the safety of children's toys according to the EU "Toy Directive" (2009/48/EC).


      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.

      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.

  • Disposal instructions
    • 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.