Chemdur Clear - High Chemical Resistant Coating

Vendor: Virtus Resins
Chemdur is a two pack, chemical resistant, UV stable polyurethane coating. suitable for floors and walls available in a gloss, silk or matt finish. It offers excellent protection from a...


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    Chemdur is a two pack, chemical resistant, UV stable polyurethane coating. suitable for floors and walls available in a gloss, silk or matt finish. It offers excellent protection from a wide range of chemicals.

    Suitable Surfaces

    Concrete, Render, Brick, Plasterboard, Steel and Aluminium. N.B: For plasterboards, one generous coat of Strongcoat V is required.


    • Excellent Adhesion
    • Weather resistance
    • Barrier against heavy rain
    • Protection from carbonation
    • Anti-graffiti properties
    • Hygienic sterile finish
    • Highly chemical resistant (including Skydrol)
    • Ideal as an anti-corrosion coating for internal and external structural steelwork.
    • Complies with F.D.A regulations for food process machinery in that they do not yellow or support bacterial growth.

    Surface Preparation:

    Cementitious Substrates:

    All substrates must be protected by an adequate and effective DPM. Inadequate preparation will lead to loss of adhesion and failure. In coatings, there is a tendency for the finish to mirror imperfections in the substrate. For concrete substrates, grinding or light vacuum contained shot-blasting is therefore preferred over planing for these systems. Refer to the Virtus Guide to Surface Preparation.

    Steel Substrates:
    Steel surfaces should be prepared to SA 2 ½ standard and coated immediately to prevent flash rusting.

    Application to plasterboards requires one coat of Strongcoat V prior application of Chemdur Topcoat.


    In most cases Chemdur Clear is self-priming but is generally used as a top coat over Chemdur Undercoat.


    Prior to mixing, the temperature both components should be between 15 and 20 ºC. Add the hardener component to the coloured resin component and mix using a low speed electric mixer (300 - 400 rpm) for at least 3 minutes until homogeneous. Keep the mixing paddle fully submerged to avoid the entrapment of air and scrape the sides and bottom of the vessel several times.

    Important: Both liquids are pre-weighed and designed to be mixed together in their entirety. It is essential that the full amounts are mixed together and until homogenous to ensure the product cures correctly and to the desired finish.


    Can be applied by brush, short-nap roller or spray. Distribute the mixture immediately onto the surface using solvent resistant short nap lint-free mohair roller. Plan the work area to ensure a constant wet edge and work within the working time of the material. It is imperative that film thickness is kept constant, especially with silk coatings to maintain consistency of appearance. This should be regularly checked using a wet film thickness wheel.

    Ensure that material is not applied more than once or overlapped in any area and apply in one direction only. If the thickness of the applied material is uneven, the surface may have an uneven appearance due to differences in gloss. Avoid pooling as this will lead to solvent entrapment and un-cured areas.

    Do not apply subsequent coats until the previous coat is cured. This will depend on temperature, atmospheric humidity and degree of ventilation. Adequate ventilation and air movement is necessary. If applying by spray, suitable respiratory protective equipment should be worn by all exposed persons. Where specified, apply Chemdur Undercoat evenly at the coverage rate determined by trials. If, when cured, there are dry patches, a further coat may be required.

    Technical Datasheets

    Chemdur Clear

    data sheet download

    Safety Data Sheets

    Chemdur Clear Gloss Resin

    data sheet download

    Chemdur Clear Silk Resin

    data sheet download

    Chemdur Clear Gloss Hardener

    data sheet download

    Chemdur Clear Silk Hardener

    data sheet download

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