Chopped E-glass fiber
Plastic bags + carton / pallet
Natural / White / Black / Custom
E-glass fiber
Thermoset polyester bulk molding compound
Used for valve covers, intake manifolds, gearbox housings, bumper supports, and electrical brackets. BMC helps reduce vehicle weight while offering excellent resistance to oil, chemicals, and temperature fluctuations.
Ideal for insulators, motor end shields, switchgear enclosures, terminal blocks, and transformer components, thanks to its high dielectric strength, arc resistance, and tracking resistance.
Applied in corrosion-resistant pipe fittings, structural supports, decorative panels, and electrical junction boxes. BMC performs reliably in outdoor environments, resisting moisture and UV exposure.
Used for pump housings, valve bodies, and machinery components where high mechanical strength, wear resistance, and long-term durability are required.
Suitable for kitchen sinks, bathroom fixtures, furniture hardware, and power tool housings, offering smooth surface finish and design flexibility.
Applied to non-implantable components such as diagnostic equipment housings and surgical instrument handles. BMC is non-toxic, easy to clean, and sterilizable.
Excellent tensile, flexural, and impact strength, up to 40% lighter than aluminum, enabling metal replacement.
High dielectric strength (≥15 kV/mm) with excellent arc and tracking resistance.
Resistant to oils, solvents, acids, alkalis, moisture, and harsh outdoor environments.
Complex geometries, thin walls, ribs, and inserts can be molded in one step with short cycle times (30 seconds–5 minutes).
Stable from –40°C to 150°C, up to 200°C for special grades, with optional UL94 V-0 / V-1 flame-retardant formulations.
Low material waste, minimal post-processing, and lower tooling costs compared to metal casting or machining.
Property | Typical Value |
Reinforcement | Chopped E-glass fiber (3–9 mm) |
Density | 1.7–2.1 g/cm³ |
Dielectric Strength | ≥15 kV/mm |
Operating Temperature | –40°C to 150°C (up to 200°C optional) |
Flame Rating | UL94 V-0 / V-1 (customizable) |
1. What is BMC mainly used for?
BMC is mainly used for molded components requiring high strength, electrical insulation, and complex shapes, such as automotive parts, electrical enclosures, industrial housings, and consumer products.
2. How is BMC different from SMC?
BMC comes in a bulk, dough-like form and is better suited for smaller, more intricate parts with tight tolerances, while SMC is typically used for larger panel-type components.
3. Which molding processes can be used for BMC?
BMC is suitable for compression molding and injection molding, offering short cycle times and high production efficiency.
4. Can BMC be customized?
Yes. BMC can be customized in terms of mechanical strength, electrical insulation, flame retardancy, heat resistance, and color to meet specific application requirements.
5. Is BMC flame-retardant and safe for electrical applications?
BMC can be formulated to meet UL94 V-0 or V-1 flame ratings and provides excellent dielectric, arc, and tracking resistance for electrical safety.
Used for valve covers, intake manifolds, gearbox housings, bumper supports, and electrical brackets. BMC helps reduce vehicle weight while offering excellent resistance to oil, chemicals, and temperature fluctuations.
Ideal for insulators, motor end shields, switchgear enclosures, terminal blocks, and transformer components, thanks to its high dielectric strength, arc resistance, and tracking resistance.
Applied in corrosion-resistant pipe fittings, structural supports, decorative panels, and electrical junction boxes. BMC performs reliably in outdoor environments, resisting moisture and UV exposure.
Used for pump housings, valve bodies, and machinery components where high mechanical strength, wear resistance, and long-term durability are required.
Suitable for kitchen sinks, bathroom fixtures, furniture hardware, and power tool housings, offering smooth surface finish and design flexibility.
Applied to non-implantable components such as diagnostic equipment housings and surgical instrument handles. BMC is non-toxic, easy to clean, and sterilizable.
Excellent tensile, flexural, and impact strength, up to 40% lighter than aluminum, enabling metal replacement.
High dielectric strength (≥15 kV/mm) with excellent arc and tracking resistance.
Resistant to oils, solvents, acids, alkalis, moisture, and harsh outdoor environments.
Complex geometries, thin walls, ribs, and inserts can be molded in one step with short cycle times (30 seconds–5 minutes).
Stable from –40°C to 150°C, up to 200°C for special grades, with optional UL94 V-0 / V-1 flame-retardant formulations.
Low material waste, minimal post-processing, and lower tooling costs compared to metal casting or machining.
Property | Typical Value |
Reinforcement | Chopped E-glass fiber (3–9 mm) |
Density | 1.7–2.1 g/cm³ |
Dielectric Strength | ≥15 kV/mm |
Operating Temperature | –40°C to 150°C (up to 200°C optional) |
Flame Rating | UL94 V-0 / V-1 (customizable) |
1. What is BMC mainly used for?
BMC is mainly used for molded components requiring high strength, electrical insulation, and complex shapes, such as automotive parts, electrical enclosures, industrial housings, and consumer products.
2. How is BMC different from SMC?
BMC comes in a bulk, dough-like form and is better suited for smaller, more intricate parts with tight tolerances, while SMC is typically used for larger panel-type components.
3. Which molding processes can be used for BMC?
BMC is suitable for compression molding and injection molding, offering short cycle times and high production efficiency.
4. Can BMC be customized?
Yes. BMC can be customized in terms of mechanical strength, electrical insulation, flame retardancy, heat resistance, and color to meet specific application requirements.
5. Is BMC flame-retardant and safe for electrical applications?
BMC can be formulated to meet UL94 V-0 or V-1 flame ratings and provides excellent dielectric, arc, and tracking resistance for electrical safety.
