Product Resources

• Product & Application Information

MSDS Sheets

• MSDS Sheet – Kuniseal C-31 DS Waterstop

Kuniseal C-31 DS 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. It is also easy to install.

Kuniseal C-31 DS is a composite product consisting of high swelling bentonite, mineral oil and modified polymer.

Key Benefits

• Self-adhesive

• Installation time reduced

• Easy to shape and form 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 environments

Recommended for: 


• Concrete construction joints, both vertical and horizontal

• Foundation joints

• Water Containing structures

• In Situ penetrations in concrete

• H-Shaped beams