RIW Toughseal

Size: Black 20L
( £1,127.45 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 Toughseal

RIW Toughseal is, as its name suggests, developed to create a dynamic, hard-wearing seal. This is a flexible polymer developed without solvents and arrives in two constituent parts. It provides a superb tensile membrane, blocking water and vapour ingress in basement and ground floor applications. However, you may also find that RIW Toughseal provides exceptional resistance in swimming pools, computer rooms and wet spaces.

Simple to apply and quick to act, RIW Toughseal is also resilient against chemical splash and extensive abrasion damage. The product is also fire rated to class 1 and is completely resistant to UV light. Ideal for raised floors, the application of RIW Toughseal will also ensure long-lasting protection against some alkalis and carbon dioxide. It is also highly slip-resistant when used with some aggregate solutions and applications.

RIW Toughseal is an excellent choice in tanking and water protection applications where aesthetics may not be the top priority. In line with other RIW products, this is a highly durable and versatile resource. It is not suitable for potable system installations but can be used for raised floors and sewage access.

Add RIW’s seasoned water and vapour barrier to start taking advantage of live discounts. Add items in the store to start making savings while you browse.


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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