A tough material, available in gun grade only.  Permaflex B combines hardness with some flexibility.  The joint can contract by up to 10% due to additional concrete shrinkage after application – but free contraction joints should be left for 90 days before filling.

Specification Details for PermaFlex B (Sealants)

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that RCR Flooring Products Limited is consulted before specifying.

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