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GEHR Plastics PMMA Acrylic
| Category | Polymer , Thermoplastic , Acrylic (PMMA) |
| Manufacturer | GEHR Plastics Inc |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | GEHR Plastics PMMA Acrylic.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Polymethylmethacrylate is refractory and shows a good mechanical strength, tensile strength and hardness. PMMA is also scratch resistant and easy to polish. It shows good temperature resistance and UV-stability. The operating temperature of PMMA ranges from -40°C to approximately 70°C.Properties:very high mechanical strength and hardnesshigh mechanical rigidityexcellent transparencyeasy to polishgood thermal stabilitygood insulation propertieslow water absorptionexcellent weather resistancepossible stress problemslow chemical resistancebrittleApplications:DisplayAdvertisementfood industryconduit pipe for milktubes for lampshand railsautomotive parts
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Specific Gravity | 1.18 g/cc | 1.18 g/cc | ISO 1183 |
| Water Absorption | 0.30 % | 0.30 % | ISO 62 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength, Yield | 72.0 MPa | 10400 psi | ISO 527 |
| Elongation at Break | 4.5 % | 4.5 % | ISO 527 |
| Modulus of Elasticity | 3.30 GPa | 479 ksi | ISO 527 |
| Flexural Strength | 105 MPa | 15200 psi | 3.5%; ISO 178 |
| Charpy Impact Unnotched | 1.20 J/cm² | 5.71 ft-lb/in² | ISO 179 |
| Charpy Impact, Notched | 0.200 J/cm² | 0.952 ft-lb/in² | ISO 179 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 70.0 µm/m-°C @Temperature 20.0 °C |
38.9 µin/in-°F @Temperature 68.0 °F |
DIN 53752 |
| Thermal Conductivity | 0.190 W/m-K | 1.32 BTU-in/hr-ft²-°F | DIN 52612 |
| Maximum Service Temperature, Air | 70.0 °C | 158 °F | |
| Deflection Temperature at 1.8 MPa (264 psi) | 90.0 °C | 194 °F | ISO 75 |
| Vicat Softening Point | 102 °C | 216 °F | VST/B/50; ISO 306 |
| Flammability, UL94 | HB | HB |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Volume Resistivity | >= 1.00e+15 ohm-cm | >= 1.00e+15 ohm-cm | VDE 0303 |
| Surface Resistivity per Square | >= 1.00e+13 ohm | >= 1.00e+13 ohm | VDE 0303 |
| Dielectric Constant | 2.7 @Frequency 1.00e+6 Hz |
2.7 @Frequency 1.00e+6 Hz |
DIN 53483 |
| Dielectric Strength | 30.0 kV/mm | 762 kV/in | VDE 0303 |
| Dielectric Loss Index | 0.020 @Frequency 1.00e+6 Hz |
0.020 @Frequency 1.00e+6 Hz |
DIN 53483 |
| Comparative Tracking Index | >= 600 V | >= 600 V | CTI; IEC 60112 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Acid Resistance | yes | |
| Aromatic Resistance | no | |
| Bondability | yes | |
| CKW Resistance | limited | |
| Color | Clear | |
| Hydrocarbonate Resistance | yes | |
| Hydroxide Resistance | yes | |
| Ketone Resistance | limited | |
| Physiological indifference according | yes | |
| Resistance Against Hot Water | limited | |
| UV Stabilization | yes |
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