FIBERFLEX® Fiber expansion joint is a joint filler made from proprietary wood fiber blend of treated wood fibers and additives which yields flexible, easy -to-handle boards.
It is used to prevent damage during expansion and contraction of concrete. This product is weather-resistant and meets the requirements of ASTM D 1751. It can be used in driveways, sidewalks, and patios. It is typically used in between concrete slabs and to separate slabs from structures.
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