Environmentally Stable Polycarbonate for LED Lighting in High-Moisture Settings

Light Diffusion PC product models in the LED lighting field

Production Description:

Chemical-resistant PC grades incorporate fluoropolymer layers (ETFE/THV) via coextrusion, achieving 24hr NSS resistance (ASTM B117) and 500hr fuel C immersion stability. Automotive fuel system components and industrial chemical valves benefit from this multilayer barrier technology.

Key Advantages Over Standard PC:

• Tailored Performance: Balances transparency, strength, and processability for niche uses.

• Cost Reduction: Blends like PC/ABS lower material costs while maintaining core properties.

• Durability: Enhanced UV, chemical, and thermal stability for harsh environments.

• Regulatory Compliance: Meets flame safety (UL94), food contact (FDA), and medical standards.

A: Bulb Lamp Cover Series (Light Transmittance 90% - 98%, Beam Angle 150° - 230°)

B: T-Bulb Lamp Cover Series (Light Transmittance 86% - 96%, Beam Angle 150° - 200°)

C. BR Lamp/PAR Lamp/Spotlight Cover Series (Light Transmittance 88% - 94%)

D. Taper/Candle Bulb Cover Series (Light Transmittance 85% - 95%)

E. Ceiling Lights and Various Lamps Series (Light Transmittance 80% - 92%)

F. Tube Light Series (T8 Tubes, Dual-Color Tubes) (Light Transmittance 80% - 96%)

Company Profile


HMT International is a leading global manufacturer and exporter specializing in modified plastics, operating under the brand Chongyuan. Established with a commitment to innovation and sustainability, we engineer high-performance thermoplastic compounds tailored to meet the evolving demands of industries worldwide.
Certified to ISO 9001, ISO 14001, and compliant with RoHS/REACH standards, we align our operations with global sustainability goals while delivering exceptional technical support and supply chain reliability.
3,000+ customized formulations.
500,000+ MT annual production capacity.
25+ years of polymer expertise.
ISO 9001 & ISO 14001 certified facilities.