SUPERSWELL® 47B Hydrophilic Butyl Waterstop Seal  VIEW PRODUCT BROCHURE (20 x 15mm)  VIEW PRODUCT BROCHURE (25 x 19mm)  VIEW INSTALLATION VIDEOSuperswell® 47B Hydrophilic Butyl Waterstop Seal is a unique sealing compound which expands in a controlled fashion when exposed to moisture, forming a compression seal in concrete joints. Superswell® 47B is ideal for use in horizontal and vertical...

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