Sheet Molding Compound (SMC) is a thermoset composite widely used in compression molding for high-strength, lightweight components across automotive, aerospace, construction, and electrical industries. Originated in Europe in the 1960s, SMC has evolved into various types to meet diverse performance needs.
Composed of unsaturated polyester resin, 25–50mm glass fibers, fillers, and additives, it offers a balance of cost and performance.
Properties: Density 1.7–1.9 g/cm³, flexural strength >85 MPa, temperature range -50℃ to 200℃.
Applications: Automotive body panels, electrical enclosures, construction parts.
Engineered for superior mechanical performance with 65% glass fibers in unidirectional orientation.
Properties: Flexural strength up to 250 MPa (3× standard SMC), ideal for lightweighting.
Applications: Automotive suspension parts, aerospace structures.
Features 70–80% continuous glass fibers in X-pattern, delivering ultra-high strength.
Properties: Tensile strength >600 MPa, temperature resistance up to 250℃.
Applications: EV battery enclosures, aerospace wing spars.
Flame-Retardant SMC: Meets UL94 V-0 for electrical and transit interiors.
Conductive SMC: Provides EMI shielding for 5G and automotive electronics.
Bio-Based SMC: Reduces carbon footprint by 20–30% for eco-friendly parts.
The global SMC market, valued at $3.5B in 2024, is projected to reach $6B by 2029, driven by automotive electrification and sustainable manufacturing. SMC continues to innovate, solidifying its role in modern composite engineering.
Nov 11, 2025|
View:180
