RIW Liquid Asphalt Composition

Size: 25L
( £279.67 Incl VAT )

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Fast deliveries! We deliver to most parts of the UK within 1-2 working days with our Express option.

RIW Liquid Asphalt Composition

RIW Liquid Asphalt Composition or LAC, is a highly effective water barrier and membrane. Damp-proof, it is also widely used as a barrier against radon and is considered highly flexible and versatile. Made from bitumen and naturally sourced petroleum, it is a double coat solution that you will need to apply cold to your surface. In particular, it’s relied upon in ground floor applications.

This basement tanking solution applies in a black and glossy finish, uniform from edge to edge. It is resistant against sulphates and generally used on steel and concrete surfaces. It is fantastic at defending ground floors against damp and stopping external walls from absorbing moisture. This multi-purpose application can therefore be used on horizontal, vertical and sloping surfaces with ease.

RIW Liquid Asphalt Composition’s innate durability will weather your chosen structure’s longevity. However, it is always prudent to avoid UV exposure in long bursts. Once your LAC is completely dry, it is ready for lining or plastering as you see fit. This product works well with grades 1 to 3 of Type A basements. 

Adding RIW Liquid Asphalt Composition to your basket will also activate a live discount while you shop. Add more items to unlock further savings.


All items are usually available for next working day delivery if ordered before 11am, and that we do our best to keep it that way. However, sometimes the delivery slots are full before 11am, so it’s not always guaranteed. If it happens, we will deliver on the following working day.

To find out if next day delivery is available, please contact us using the live chat or contact us here to verify, read our full delivery information here.

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