Cordex is a sealant backing cord made from low density, cross-linked, closed cell, expanded Polyethylene foam. No bond breaker required between cord and sealant. It has a good recovery capacity.
Typical applications include being used in various types of expansion joints as a backer for joint sealant or caulking materials. It is also used in vertical joints and elevated horizontal joints in concrete, brick or metal construction. Cordex is used in copings, doors, curtain wall construction and pre-cast units, as well as for piping in the furniture industry.