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Cresco BT Waterstop 20mm x 25mm x 5mSKU: 050CBTW20X25X5
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Cresco® BT is a bentonite-based swelling tape that slowly builds up expansion pressure when exposed to water. Joints, cracks or small blowholes are filled by the expansion effect of the bentonite. The expansion effect is limited in order to avoid concrete spalling.
Cresco® BT swelling tapes are used for the regular sealing of construction joints. A swelling pressure slowly builds up when the tape meets water, whereby the working joint is sealed. The Cresco® BT swelling tape has good dimensional stability.