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Filament Winding
Filament winding is an automated open molding process that uses a rotation mandrel as the mold. Type 30® single-end Roving or specialized fabric tapes are drawn through a Resin and pulled by the force of a rotating mandrel.

The mandrel can be covered with a Veil for an inner, corrosion resistant surface, and the roving is spun around the veil. An outer-surface veil can also be applied for corrosion resistance and aesthetics. The process is completed by heating and curing the Composite into the final product. Filament winding is used to make high strength, hollow and generally cylindrical composite products such as pipe, storage tanks and pressure vessels.
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