SOUDAL Soudatight LQ Paint On Airtight Membrane (Black) - 4.5kg
Product Code:
4.5 kg
In stock
Estimated Delivery:
1 - 2 working days
Please get in touch for a more accurate lead time.
£40.60 inc. VAT 40.60
£33.83 ex. VAT
£9.02 per kg (inc. VAT)

Soudal Soudatight LQ is a high-quality fibre-reinforced polymer membrane which forms an air and vapour-tight elastic membrane after drying. The product can be quickly and easily applied with a brush in the desired layer thickness on almost any mineral substrate. Fills cracks up to 5 mm due to fibre-reinforcement. Once dried a second coat (or more) can be applied if required, after which it can be painted or plastered over. The black variation changes colour after drying, from blue to black. The white version does not have this colour indication.

Key points :

Liquid polymer membrane



Easy to apply by brush

Fills gaps of up to 5mm due to fibre-reinforcement

Passive House certified component (phA)

    Specification :
    Size: 4.5kg tub

    Consistency: Paste
    Skin Formation: ca. 60 min
    Drying Time: ca. 24 - 48 hours
    Consumption: 500-1000 g/m² (substrate dependent)
    Sd Value: 37.5 m
    Colour: Black (Blue when wet and dries black)


    General airtightness of any joints or connections e.g. floor to wall joints, wall to ceiling joints. Can also be used as an alternative to SWS Inside Tape if used as part of a system with Soudafoam Window & Door SWS.

    - Penetration seals
    - Seams, gaps, cracks and holes
    - Wall-floor connections
    - Wall-Wall connections
    - Window connections:
       - Inside inner leaf (reveal area)
       - Outside inner leaf

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    Datasheets & Documents.
    If you require a Safety datasheet (SDS) for this product please get in touch.
    If you require a BBA Certificate for this product please get in touch.