How compression molded SMC compares with hand lay-up and spray-up fiberglass (FRP) on part quality, consistency, cycle time, tooling and cost per part.
BMC & SMCMolds · Compression & Injection Molded Parts
How BMC injection molding and BMC compression molding differ in part properties, design freedom, tooling, cycle time and cost, and when to use each.
What sets the price of an SMC compression mold (part size, press, steel, surface, heating, inserts and volume) and how to compare quotations.
Design rules for SMC parts and compression molds: wall thickness, ribs, bosses, draft, radii, shear edges, heating and ejection.
How BMC, SMC and glass-filled thermoplastics compare on strength, heat, shrinkage, part size, tooling and cost, and how to choose between them.
What sheet molding compound is made of, how SMC parts are compression molded, the properties that make SMC useful and where it is used.