Sika has a variety of hydrophilic waterstops with a proven track record for being high quality and a cost effective solution for water containment needs. These products may be used for various applications where you need to keep water in or out.

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Hydrophilic (Swelling) Waterstops, Hydrotite

Hydrotite is a state-of-the-art hydrophilic waterstop with unmatched durability and watersealing capacity. Comprised of Non-Bentonite, modified chloroprene rubber, Hydrotite expands up to EIGHT TIMES its original volume when exposed to water. This expansion creates an effective compression seal within joints of limited movement.

Hydrophilic (Swelling) Waterstops, Leakmaster

Sika Leakmaster is a single component water-swelling sealant with excellent and unique properties. Leakmaster may be applied in locations where conventional solid sealants cannot be easily applied. 

Hydrophilic (Swelling) Waterstops, Sika Swellstop Waterstop
Sika Swellstop Waterstop

Sika Swellstop is a flexible, coiled strip of butyl rubber and a swellable clay waterproofing compound that swells upon contact with water to form a long lasting compression seal in concrete joints.

Hydrophilic (Swelling) Waterstops, SikaSwell S-2
SikaSwell S-2

A specially formulated, high-performance, swellable, one-component, polyurethane-based waterstop for use in all kinds of construction joints. Swelling rubber creates a compression seal within joint, blocking the passage of water.