SMC (Sheet Molding Compound) and BMC (Bulk Molding Compound) are both fiber-reinforced thermoset materials, but differ mainly in form, fiber length, and application. SMC comes in sheets with long fibers (\(>1\) inch) for high-strength structural parts, while BMC is a dough-like bulk material with short fibers (\(<0.25\) inches) optimized for complex, smaller, and cost-effective electrical components.
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