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Polyurethane Coated fiberglass fabric
Polyurethane coated fiberglass fabric has a coating of PU on one side of the fabric, as well as an acrylic coating. The PU coated fabric tends to be a bit thicker than that of the acrylic coated. It appears that PU coated products are more expensive in practice, although a thicker layer needs more polymer. Usually, a PU-coated fabric puts the coated side on the‘inside’and leaves the fabric on the outside. This protects the PU coating from UV and abrasion, but it also means that any water can soak into the exposed fibers on the uncoated fabric. This results in long delays in drying because the water can only dry out of the fibers as fast as it is able to evaporate from the fabric surface.