Enhanced Weathering Resistance PC Material with Integrated Moisture Protection for LED Lamps
Light Diffusion PC product models in the LED lighting field
| Properties | Test Condition | Test Method | Unit | Typical Value |
| Physical | | | | |
| Specific Gravity | | ASTM D792 | - | 1.25 |
| Molding Shrinkage (Flow), 3.2mm | | ASTM D955 | % | 0.2 ~ 0.4 |
| Melt Flow Rate | 300ºC/1.2kg | ASTM D1238 | g/10min | 18 |
| Mechanical | | | | |
| Tensile Strength, 3.2mm | | ASTM D638 | | |
| Yield | 5mm/min | | kg/cm2 | 850 |
| Tensile Elongation, 3.2mm | | ASTM D638 | | |
| Yield | 5mm/min | | % | |
| Break | 5mm/min | | % | |
| Flexural Strength, 3.2mm | 1.3mm/min | ASTM D790 | kg/cm2 | 1,400 |
| Flexural Modulus, 3.2mm | 1.3mm/min | ASTM D790 | kg/cm2 | 40,000 |
| IZOD Impact Strength, 3.2mm | | ASTM D256 | | |
| (Notched) | 23ºC | | kg·cm/cm | 8 |
| | -30ºC | | kg·cm/cm | |
| Rockwell Hardness | R-Scale | ASTM D785 | - | 124 |
| Thermal | | | | |
| Heat Deflection Temperature, 6.4mm | | ASTM D648 | | |
| (Unannealed) | 18.6kg | | ºC | 138 |
| | 4.6kg | | ºC | |
| Vicat Softening Temperature | | ASTM D1525 | | |
| | 5kg, 50ºC/h | | ºC | |
Production Description:
PC plastic, English name of Polycarbonate, referred to as PC, is an amorphous thermoplastic. It is a general term for a class of polymer compounds containing carbonate structure in the molecular chain and various materials prepared on the basis of it. According to the different ester groups in the molecular structure, it can be divided into aliphatic group, alicyclic group, aromatic group and aliphatic aromatic group. And bisphenol A type polycarbonate is the most important, the molecular weight is usually 30-100,000. In the absence of special instructions, the commonly referred to polycarbonate refers to bisphenol A type polycarbonate and its modified varieties. Because of its excellent mechanical properties, commonly known as bulletproof adhesive.
Key Advantages Over Standard PC:
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Tailored Performance: Balances transparency, strength, and processability for niche uses.
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Cost Reduction: Blends like PC/ABS lower material costs while maintaining core properties.
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Durability: Enhanced UV, chemical, and thermal stability for harsh environments.
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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.
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Enhanced Weathering Resistance PC Material Polycarbonate Resin For LED Lamps Images
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