Basic Fiberglass Mold Making Guide - Fiberglass Warehouse

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If you are looking for a cost-effective way to make custom fiberglass molds, this step-by-step guide is exactly what you need. This guide will walk you through the process of creating a fiberglass mold from start to finish, including plug preparation, mold release and gel coat application, using fiberglass and resin and removing the plug. With some time and effort, anyone can make their own professional-looking fiberglass mold that can not only produce lots of parts but also last for many years! Items Needed: Sealer or resin if plug is porous Mold release wax PVA Tooling gel coat (or unwaxed gel coat) Gel coat spray gun (recommended) or brush Chopped strand mat Ortho or ISO polyester resin MEKP catalyst Spreader Fiberglass roller Plastic wedge Polishing agent Plug Preparation The first step in making a fiberglass mold is preparing your plug.