• Adolit BQ 20

    Article No. 255230

    Adolit BQ 20

    Water-soluble, heavy-metal-free, liquid, wood preservative concentrate

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    Safety instructions

    • Use biocides safely. Always read the label and product information before using!

    Product specifications

    On delivery

    Density (20°C) Approx. 1.25 g/cm³
    Odour Weak, characteristic

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

    Field of application

    • For use indoors and wood not directly exposed to weather
    • For structural elements
    • For professional users only
    • Wood in interiors and in protected outside areas
    • Wood without ground contact as per DIN EN 335-1, use classes 1 and 2
    • Building elements subjected to high static loads
    • Wood not subject to static loads
    • Suitable for solid structural timber (KVH)


    • Water-based
    • Preventive protection against wood-destroying insects and fungi
    • Temporary protection against blue stain and rot during drying
    • Very economical: low-concentrated solution and low application rate, short dipping time
    • UV-stable control colouring agents
    • Corrosion-inhibiting
    • Very good solubility
    • Easy-to-measure concentration
    • Long-term stability of active agents
    • Preparation
      • Substrate requirements

        The substrate must be clean and free of dust.

        Permissible wood moisture content: > 20% (artificially dried construction timber excluded).

        The wood should have already been cut to measure.

      • Preparations

        Completely remove old coatings (e.g. paints or medium-build stains), bark, bast and dirt.

    • Application
      • Application temperature: min. 5 °C
      • Brush/Dipping/ Spraying tunnel
      • Application requirements

        Temperature of the material, air and substrate: from +5°C

      • Application by brush, dipping or spraying tunnel.

        After treatment, store wood in a sheltered place for at least 2 days for drying/fixation and to prevent the preservative from being washed out. Do not count days with frost in the fixation time.

        Once dry (waiting time min. 4 weeks), the treated wood can be further treated with approved solvent-based or water-based coatings.

    • Application instructions
      • Drying time: can be worked over after 48 h
      • Check colour, adhesion and compatibility with the substrate by setting up a trial area.

      • Drying

        Fixation: min. 48 hours
        Overcoating: min. 4 weeks

    • Working tools / cleaning
      • Brush/Dipping/ Spraying tunnel
      • Brush, dipping and open tank impregnation facilities, spraying tunnel

      • Clean tools immediately after use with water.

        Ensure that any residue from cleaning is disposed of correctly.

    • Storage / shelf life
      • Store frost-free and cool / protect for moisture / close containers
      • Store in well-sealed, original containers, out of the reach of children and in a dry, cool, well-ventilated room which is protected from direct sunlight and frost. No smoking is permitted in storage areas.

    • Usage
      • Total salt concentrate application rate 10 g / m²
      • Total salt concentrate application rate 10 g / m²
      • Required application quantity for brush application, spraying (spraying tunnel) or dipping/open tank impregnation in stationary facilities:
        Use class 1 and 2 = 10 g wood preservative concentrate/m² wood.

    • General information
      • Subsequently cut surfaces and cracks that form during drying must be retreated with a 20% solution of the product.

        The product has been evaluated according to the Biocidal products regulation (EU) No. 528/2012 and approved by the Federal Institute for Occupational Safety and Health (BAuA). This approval replaces the general approval by the German Institute for Building Technology (DIBt).

        In accordance with DIN 68800-1, wood preservation measures must be planned in a timely and careful manner in coordination with all parties involved in the construction (architect, client, contractor) taking into account legal requirements and local conditions.

    • 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.

        European waste code 03 02 99 wood preservatives not otherwise specified

    • 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.