EXAFOAM is a closed cell polyethylene foam backer rod for use in expansion joints in concrete. Its closed cell structure makes the product non-absorbent and easily compressed.
EXAFOAM is a compressible joint backer rod, used as a joint filler in masonry and concrete structures to provide a back of the joint sealant.
• Excellent compressibility.
• Closed cell structure prevents water absorption.
• Easily cut to shape.
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