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Spray Up Fiberglass Molding Process
Spray up is an open molding process in which multi-end fiberglass roving is fed into a chopping gun which chops the fiberglass into batches at a preset length. The batches of fiberglass are then sprayed into a stream of resin and catalyst (which also comes from the gun) and shot onto the open mold. The open mold has a layer of gel coat applied to it before it is sprayed with saturated fiberglass from the spray-gun. The spray-up process is used to make large and complex parts such as bath tubs and boat hulls. |
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