HB Body 2K Fibre Glass Polyester Filler 1.5kg. This Fibre Glass filler is a Two-component polyester cement screed with a rust inhibitor and containing fillers in the form of short glass fiber. This HB Body stopper is flexible and solid,  even after applying thick layers.  It is also used for repairs of laminates (boats, swimming pools, etc.). This Fibre Glass filler dries quickly, ans is easy to grind using dry emery paper P 100-160. Supplied in 1460g Tin complete with Hardener.