CEMswell is an extruded rubber based compound made from butyl rubber, hydrophilic resin, polyethylene, silicone and special admixtures used to seal joints in pre-fabricated concrete elements.


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How does CEMswell work:

On contact with water CEMswell is capable of swelling up to four times its own volume and under conditions of confinement will mould itself to the surrounding surfaces producing a water-tight seal.

Key Features & Benefits

  • Suitable for use in both vertical and horizontal joints in prefabricated elements
  • Capable of swelling up to four times is own volume
  • Available in three different dimensions
  • Easy to install

Specification Tip for Design Professionals:
CEMswell may be specified by name or by using the following description: an extruded rubber-based compound made from butyl rubber, hydrophilic resin, polyethylene, silicone and special admixtures.

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