Kuniseal C-31 DS


Kuniseal C-31 DS


Kuniseal C-31 DS has been developed as an easy-to-use bentonite clay swelling waterstop material designed to prevent the ingress of water through cast-in-situ concrete construction joints.

KuniSeal is a composite product consisting of high swelling bentonite, mineral oil and modified polymer, which is specifically designed to act as a moisture barrier in concrete construction joints. Its unique characteristics give it long lasting durability and superior waterproofing results even when subjected to high hydrostatic pressure and in marine environments and it is easy to install.

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• Concrete construction joints, both vertical and horizontal

• Foundation Joints

• Water Containing Structures

• In-situ penetrations in concrete

• H shaped beams


• Self Adhesive

• Installation time reduced

• Easy to shape and for to joint

• No stress to concrete joints

• Long lasting in-situ durability

• Delayed swell allowing for adverse on site weather

• Superior results in stopping moisture penetration

• Suitable for marine environment