Chimei ACRYREX® CM-205 PMMA
Plastic Granules
ACRYREX® CM-205 PMMA Transparent Grade
Chimei ACRYREX CM-205 combines heat resistance, high strength, and exceptional extrusion performance. Ideal for precision-molded components like automotive lights, lenses, and appliance parts, this high-viscosity material ensures durability and clarity even in demanding environments.
Associated Documents
ISO TDS
ASTM TDS
MSDS
UL Product iQ
Processing Data
Typical property data
Physical Properties
- Melt Flow Index: 1.9 ml/10 min (ISO 1133, 230℃ × 3.8 KG)
- Mass Density: 1.19 g/cm³ (ISO 1183, 23℃)
Mechanical Properties
- Tensile Strength:
- Yield: 70 MPa (ISO 527, 5 mm/min)
- Break: 70 MPa (ISO 527, 50 mm/min)
- Tensile Elongation: 12% (ISO 527, 50 mm/min)
- Flexural Strength: 103 MPa (ISO 178, 2 mm/min)
- Flexural Modulus: 2.8 GPa (ISO 178, 2 mm/min)
- Izod Impact Strength: 2 KJ/m², Notched (ISO 180/1A, 23℃)
- Charpy Impact Strength: 2 KJ/m², Notched (ISO 179, 23℃)
Thermal Properties
- Vicat Softening Temperature:
- 115℃ (ISO 306, 50℃/hr; 1 KG)
- 107℃ (ISO 306, 50℃/hr; 5 KG)
- Heat Distortion Temperature:
- 95℃, unannealed (ISO 75/A, 1.8 MPa)
- 104℃, annealed (ISO 75/A, 1.8 MPa)
- Coefficient of Linear Thermal Expansion: 6 × 10⁻⁵ (ISO 11359)
Flammability
UL Flammability Rating: HB (UL-94, 1.5 mm)
Mold Shrinkage
Mold Shrinkage: 0.2%–0.6% (ISO 294-4)
Features & Benefits
High-Temperature Stability
With a Vicat softening temperature of 115°C, CM-205 PMMA resists deformation under heat, making it perfect for car headlights or oven display panels.
Superior Mechanical Strength
A tensile strength of 70 MPa ensures components like appliance housings or optical lenses withstand stress without cracking, even in high-impact scenarios.
Smooth Extrusion Process
Its low melt flow index (1.9 ml/10min) guarantees stable processing for thin-walled parts, reducing warping and improving production efficiency.
Use/Application
- Car Lights: Heat-resistant lenses and housings for headlights or interior lighting.
- Optical Lenses: High-clarity panels for displays, signage, or industrial optics.
- Home Appliances: Durable components like dishwasher windows or refrigerator panels.
