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2. Gelcoat - Wikipedia

   en.wikipedia.org/wiki/Gelcoat

   Gelcoats are modified resins which are applied to moulds in the liquid state. They are cured to form crosslinked polymers and are subsequently backed with thermoset polymer matrix composites which are often mixtures of polyester resin and fiberglass, or epoxy resin which is most commonly used with carbon fibre for higher specific strength.

3. Fiberglass molding - Wikipedia

   en.wikipedia.org/wiki/Fiberglass_molding

   The mold is a negative image of the component to be made, so the fiberglass will be applied inside the mold, rather than around it. As in the mold-making process, release agent is first applied to the mold. Colored gelcoat is then applied. Layers of fiberglass are then applied, using the same procedure as before.

4. Resin casting - Wikipedia

   en.wikipedia.org/wiki/Resin_casting

   Alternately, resin casting may be accomplished with a resin plus a nearly equal amount of a "hardener" liquid (as in many epoxy resin or polyester resin systems), which functionally contains a second polymer, for use in forming a final product plastic which is a copolymer. Copolymers contain two different alternating chemical entities in the ...

5. Fiberglass spray lay-up process - Wikipedia

   en.wikipedia.org/wiki/Fiberglass_spray_lay-up...

   The difference comes from the application of the fibre and resin material to the mould. Spray-up is an open-moulding composites fabrication process where resin and reinforcements are sprayed onto a reusable mould. The resin and glass may be applied separately or simultaneously "chopped" in a combined stream from a chopper gun.

6. Fiberglass - Wikipedia

   en.wikipedia.org/wiki/Fiberglass

   Resin—typically a 2-part thermoset polyester, vinyl, or epoxy—is mixed with its hardener and applied to the surface. Sheets of fiberglass matting are laid into the mold, then more resin mixture is added using a brush or roller. The material must conform to the mold, and air must not be trapped between the fiberglass and the mold.

7. Fibre-reinforced plastic - Wikipedia

   en.wikipedia.org/wiki/Fibre-reinforced_plastic

   A suitable resin for combining the "fibreglas" with a plastic to produce a composite material, was developed in 1936 by du Pont. The first ancestor of modern polyester resins is Cyanamid's resin of 1942. Peroxide curing systems were used by then. [6] With the combination of fibreglas and resin the gas content of the material was replaced by ...