ACRYMID® 813
Polymethyl Methacrylimide Acrylic
ACRYMID 813 compound is an amorphous and heat-resistant thermoplastic molding compound based on polymethyl methacrylimide (PMMI).
Typical properties of ACRYMID® heat-resistant molding compounds are:
The special properties of ACRYMID 813 compound are:
Application:
Used for injection molding parts that involve a high degree of thermal stress.
Features | |
Uses | |
Agency Ratings | |
Forms | |
Processing Method | |
Density / Specific Gravity | 1.21 |
| ASTM D792 |
Melt Mass-Flow Rate (MFR) (260°C/3.8 kg) | 16 | g/10 min | ASTM D1238 |
Molding Shrinkage - Flow | 8.0E-3 to 9.0E-3 | in/in | ASTM D955 |
Water Absorption (Equilibrium) | < 0.30 | % | ASTM D570 |
Rockwell Hardness (M-Scale) | 97 |
| ASTM D785 |
Tensile Modulus | 595000 | psi | ASTM D638 |
Tensile Strength | 13100 | psi | ASTM D638 |
Tensile Elongation |
|
| ASTM D638 |
Yield | 2.0 to 4.0 | % |
|
Break | 2.0 to 4.0 | % |
|
Flexural Modulus | 551000 | psi | ASTM D790 |
Flexural Strength | 19900 | psi | ASTM D790 |
Notched Izod Impact (73°F, 0.250 in) | 0.25 | ft·lb/in | ASTM D256 |
Deflection Temperature Under Load (264 psi, Annealed, 0.250 in) | 252 | °F | ASTM D648 |
Vicat Softening Temperature | 259 | °F | ASTM D1525 |
CLTE - Flow (32 to 212°F) | 4.3E-5 | in/in/°F | ASTM D696 |
Transmittance (126 mil) | 91.0 | % | ASTM D1003 |
Haze (126 mil) | < 1.0 | % | ASTM D1003 |
Yellowness Index (0.126 in) | < 1.0 | YI | ASTM D1925 |
Drying Temperature | 239 | °F |
|
Drying Time | 2.0 to 3.0 | hr |
|
Rear Temperature | 482 to 536 | °F |
|
Middle Temperature | 482 to 536 | °F |
|
Front Temperature | 482 to 536 | °F |
|
Processing (Melt) Temp | 482 to 536 | °F |
|
Mold Temperature | 176 to 212 | °F |
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