Svällband SVÄLLMAX Plus
A technically proven swelling bentonite joint tape with crystallization additive. Works as joint tape for concrete casting joints and is tested for up to 7 bar water pressure. The joint tape consists of bentonite, which is embedded in a matrix of high molecular weight polyisobutylene rubber and special fillers and crystalline additives (patented composition). Rain or water on the construction site will not activate the product. As soon as the strip is covered with concrete, the alkaline environment decomposes the surface and it is activated by leachate. Is the only swelling bentonite joint tape, which can be used without restrictions, as it can be applied completely independent of the weather. When pouring in, no unwanted swelling occurs (rain protection). Thanks to the patented surface, the swelling in contact with water is delayed by 72 hours. To ensure that the profile is completely enclosed by concrete, the strip should be cast into cast-in-place concrete in such a way that the bentonite joint strip is all around and completely covered with concrete (at least 8 cm concrete layer is required. Durability 5 years if frost-free and protected storage against the elements.
Shape: Swellable rectangular.
Profile: Formable.
Colour: Black/dark grey.
Surface: Patented rain protection.
Weight: 730 g/m.
Toxicity: Non-toxic.
