MasterSeal 920 - A cellular, preformed, low-density joint filler

Masterseal Support Strip

Closed cell polyethylene foam with a tough, nonporous skin. Specially designed for use as a back-support strip for cold applied sealants.

Between pre-fabricated concrete panels, window frames and walls
In tiled floors, concrete roads, runways, bridge expansion joints, sea walls, dams, sewage treatment plants
It can be used in gasketing and glazing where it is used as a backing to glazing compounds

Easy to use
High quality
Non-staining
Outstanding recovery after compression
Readily compressible, excellent recovery
Sealants (Polysulphide, acrylic, silicone, polyurethane) will not adhere to it
Ensure controlled usage of sealant, as well as producing the desired cross section in the sealant which leads to the optimum/minimum strain shape for elastomeric sealants
Remains flexible and resilient even when compressed and over a wide range of temperatures