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Diakon® CTG625
Diakon® CTG625 is a toughened PMMA compound containing an impact modifier. It imparts good impact strength for injection molded and extruded parts.
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- Manufacturer: Mitsubishi Chemical Group
- Product Line: Diakon® and Elvakon® PMMA
- Product: Diakon® PMMA
- Industries: Plastics
- Authorized Countries: United States
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Overview
Diakon® CTG625 is a toughened polymethyl methacrylate (PMMA) compound containing an impact modifier, making it ideal for creating parts that are highly durable and impact resistant. Like other Diakon® grades, Diakon® CTG625 features high light transmissibility, water-white color, and excellent optical clarity that is useful for making parts meant for transmitting light. It is compatible with injection molding and extrusion techniques. Although it contains an impact modifier, the base polymer that Diakon® CTG625 contains maintains a relatively high melt flow index. Therefore, Diakon® CTG625 can be used to create highly impact-resistant parts in molds that are challenging to fill with low-viscosity melts.
Specifications
Melt flow index, g/10 min: 6.9
Vicat softening point, °C (ISO 306A): 95
Vicat softening point, °C (ISO 306B): 84
Heat deflection temperature, °C (ISO 75A): 85
Light transmission, %: 91.5
Haze, %: 1.7
Refractive index: 1.49
Tensile strength, MPa: 46
Flexural modulus, GPa: 2
Flexural strength, MPa: 63
Izod impact strength, kJ/m2: 4.7
Charpy impact strength, kJ/m2 (ISO 179/1eA): 4.7
Charpy impact strength, kJ/m2 (ISO 179/1eU): 55
Relative density: 1.15
Rockwell hardness, M scale: 33
Mold shrinkage, %: 0.4–0.8
Water absorption, %: 0.35
Flammability: HB
Glow wire test, °C: 650
Primary Chemistry: PMMA
Features & Benefits
- Extremely high optical clarity and light transmission
- High impact resistance
- Good melt flow index
- Strong resistance to weathering and yellowing
Problems Solved
Poor light transmission through acrylic parts Deterioration of clarity and color under exposure to harsh environments Breaking of parts under impact Sacrificing melt flow index to achieve impact resistance
Applications
Injection molding Extrusion
Related Chemistries
Plastics
Related End Markets
Related Functions
Plastics
Related Processes
Plastics
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