Policord is suitable to support sealants in expansion joints.
Policord polyethylene foam back-up cords have the ability to perform several functions. They enable the correct width to depth ratio of the sealing slot to be maintained and provide a firm backing for the sealant to be tooled.
The use of Policord will also act as a bond breaker at the base of the joint thus preventing three side adhesion and the accompanying additional stress during joint movement.
- Readily compressible
- Low load transfer
- Excellent recovery after compressed
- Provides a convex surface which produces the optimal form factor for elastomeric sealants
- Provides a firm backing for sealant tooling
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