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Manufacturing Processes - Spray-up Composite Molding


Composite Molding
Processes

 
Composite Molding Processes

 


Spray-Up

    Spray-up is an open mold method that can produce complex parts more economically than hand lay-up. Chopped fiberglass reinforcement and catalyzed resin, and in some cases, filler materials, are deposited on the mold surface from a combination chopper/spray gun. Rollers or squeegees are used to manually remove entrapped air and work the resin into the reinforcements. Woven fabric or woven roving is often added in specific areas for greater strength. General purpose, room temperature cure polyesters are usually used to produce such parts as truck camper shells and tub & shower stalls. As in hand lay-up, gel coats are used to produce a high quality colored part surface.

 

Spray-up Composite Molding Processes




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