SMC WS-44 Sheet Molding Compound

Kaerda SMC WS-44 is an upgraded high-strength Sheet Molding Compound with 25±2% glass fiber loading. Engineered for outdoor electrical meter boxes and industrial junction enclosures, it delivers enhanced tensile strength (≥55 MPa) and flexural strength (≥150 MPa) for robust resistance against mechanical impact and harsh environmental exposure.

Key Highlights: Glass Fiber Content: 25±2% | Density: 1.75-1.85 g/cm³ | Flame Retardancy: Non-FR | HDT: ≥200°C | Shrinkage: ≤0.12%

Key Technical Specifications

Property Test Standard Unit Value
Density GB/T1463 g/cm3 1.75-1.85
Water Absorption GB/T1462 mg ≤20
Shrinkage Rate GB/T15568 % ≤0.12
Glass Fiber Content GB/T15568 % 25±2
Heat Deflection Temperature (HDT) GB/T1634 ℃ ≥200
Tensile Strength GB/T1447 Mpa ≥55
Flexural Strength GB/T1449 Mpa ≥150
Impact Strength GB/T1451 KJ/㎡ ≥50

Product Features & Engineering Performance

  • Glass fiber content increased to 25±2%, tensile and flexural strength superior to standard 24% glass fiber grade, offering higher rigidity and less warpage for large enclosures.
  • Good molding flowability enables integrated molding of boxes, mounting brackets and reinforcing ribs with stable dimensions.
  • Low water absorption, moisture-proof and waterproof, UV & chemical resistant, resisting delamination during long-term outdoor service.
  • Heat deflection temperature ≥200℃, excellent insulation and impact resistance to protect internal meters and valves.
  • No flame retardant system, without fire rating; cost advantage versus UL94-V1 and V0 flame retardant grades.
  • Optimized mechanical properties for large-size and multi-compartment boxes, reducing the requirement of extra reinforcing ribs and simplifying mold design.

Applications & Component Suitability

Suitable for large-size multi-compartment electricity meter boxes, floor-mounted gas control cabinets, large outdoor weak-current enclosures and electrical protection boxes in non-fire-risk industrial areas. Applied to civil and industrial outdoor projects without mandatory fire standards but requiring high rigidity and anti-deformation performance. A: Suitable for large-size multi-compartment electricity meter boxes, floor-mounted gas control cabinets, large outdoor weak-current enclosures and electrical protection boxes in non-fire-risk industrial areas. Applied to civil and industrial outdoor projects without mandatory fire standards but requiring high rigidity and anti-deformation performance. Q: Can you adjust specifications based on project needs? A: Yes. The parameters shown on the page are representative references, and selected projects can be discussed for adaptation and development. Q: Can you provide samples for testing? A: Yes. Sample testing, TDS / MSDS requests, and early-stage technical evaluation are supported. Q: Do you support long-term bulk supply? A: Yes. The product is supported by real production lines and equipment, making it suitable for stable supply and long-term project cooperation. Q: Can you also support molded product development?

Manufacturing Infrastructure & Quality Control

Kaerda supports full-scale production from customized compounding to finished molded parts with ISO 9001 and IATF 16949 quality compliance:

  • 3 High-Capacity SMC Production Lines: Ensuring precise resin-to-fiber distribution and consistent lot-to-lot maturation.
  • 15 Compression Molding Presses (315T – 2500T): Capable of producing large-format, high-density composite enclosures and structural parts.
  • Integrated Testing Lab: Full testing for tensile/flexural strength, heat deflection temperature (HDT), shrinkage, and UL-94 flame retardancy.

Frequently Asked Questions

Suitable for large-size multi-compartment electricity meter boxes, floor-mounted gas control cabinets, large outdoor weak-current enclosures and electrical protection boxes in non-fire-risk industrial areas. Applied to civil and industrial outdoor projects without mandatory fire standards but requiring high rigidity and anti-deformation performance. A: Suitable for large-size multi-compartment electricity meter boxes, floor-mounted gas control cabinets, large outdoor weak-current enclosures and electrical protection boxes in non-fire-risk industrial areas. Applied to civil and industrial outdoor projects without mandatory fire standards but requiring high rigidity and anti-deformation performance. Q: Can you adjust specifications based on project needs? A: Yes. The parameters shown on the page are representative references, and selected projects can be discussed for adaptation and development. Q: Can you provide samples for testing? A: Yes. Sample testing, TDS / MSDS requests, and early-stage technical evaluation are supported. Q: Do you support long-term bulk supply? A: Yes. The product is supported by real production lines and equipment, making it suitable for stable supply and long-term project cooperation. Q: Can you also support molded product development?

Yes. Kaerda operates an in-house polymer formulation lab and 3 automated SMC production lines. We can adjust glass fiber length and loading, cure kinetics, shrinkage control, and RAL color matching according to your tooling and mechanical requirements.

Absolutely. We provide full TDS/MSDS documentation and batch material samples for initial mold sampling, shrinkage validation, and mechanical testing.

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