PMMA
Polymethyl Methacrylate (Acrylic)
PMMA is an amorphous, transparent thermoplastic with outstanding optical clarity (92% light transmission), excellent UV resistance, good surface hardness, and dimensional stability. It is widely used as a lightweight, shatter-resistant alternative to glass in automotive, architectural, displays, lighting, and signage applications.
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Applications
Properties
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 70 MPa |
| Tensile Modulus | 3,200 MPa |
| Elongation at Break | 5% |
| Flexural Strength | 115 MPa |
| Impact Strength (Izod, notched) | 2 kJ/m² |
| Hardness (Rockwell M) | M90 - M100 |
Thermal Properties
| Property | Value |
|---|---|
| HDT (0.45 MPa) | 100 °C |
| HDT (1.82 MPa) | 95 °C |
| Glass Transition Temp | 105 °C |
| Continuous Use Temp | 120 °C |
| Flammability (UL94) | HB |
Processing Parameters
| Property | Value |
|---|---|
| Drying Temperature | 80 °C |
| Drying Time | 2 - 4 hrs |
| Melt Temperature | 220 - 250 °C |
| Mold Temperature | 50 - 80 °C |
| Injection Pressure | 70 - 140 MPa |
| Shrinkage Rate | 0.2 - 0.7% |
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PMMA Technical Datasheet
Download the complete technical datasheet including mechanical, thermal, and processing properties.
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