Hydrocell XL is a cross linked, semi-rigid, closed cell polyethylene sheet material used for forming or filling expansion joints between adjacent in-situ or precast components.
Hydrocell XL provides excellent support backing to elastomeric sealants and is especially recommended for use in expansion joints in brickwork and in the construction of water retaining and water excluding structures.
Cross linked to resist lateral and hydrostatic pressure
High density support of sealant to prevent adhesion failure
Non-absorbent closed cell structure
High compression recovery
Low load transfer to joint edges
Non-tainting and rot proof
Natural bond breaker