Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
PMMA HI-855S LX MMA KOREA
LGMMA®
Automotive components、Casters
High transparency、High temperature resistan
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Plastic Datasheets
| Basic performance | Test Condition | Test Method | LX MMA KOREA/HI-855S |
|---|---|---|---|
| Water absorption rate | 24h | ASTM D-570 | 0.4 % |
| Mechanical properties | Test Condition | Test Method | LX MMA KOREA/HI-855S |
|---|---|---|---|
| Rockwell hardness | M-Scale | ASTM D-785 | 60 |
| tensile strength | ASTM D-638 | 500 kg/cm | |
| Impact strength of cantilever beam gap | Izod Notched | ASTM D-256 | 4.5 kg·cm/cm |
| Flexural modulus | ASTM D-790 | 23.000 kg/cm | |
| elongation at break | ASTM D-638 | 30 % | |
| bending strength | ASTM D-790 | 900 kg/cm |
| Electrical performance | Test Condition | Test Method | LX MMA KOREA/HI-855S |
|---|---|---|---|
| dielectric constant | 60Hz | ASTM D-150 | 3.9 |
| Loss factor | 60Hz | ASTM D-150 | 0.04 |
| Volume resistivity | ASTM D-257 | >15 Ω.m | |
| dielectric strength | 4KV/S | ASTM D-149 | 15 KV/mm |
| physical property | Test Condition | Test Method | LX MMA KOREA/HI-855S |
|---|---|---|---|
| transparency | 3.2mm | ASTM D-1003 | 91 % |
| reflectivity | ASTM D-542 | 1.49 |
| Thermal performance | Test Condition | Test Method | LX MMA KOREA/HI-855S |
|---|---|---|---|
| Shrinkage rate | ASTM D995-51 | 0.4-0.8 % | |
| Heat distortion temperature | 18.56kg，HDT | ASTM D-648 | 88 °C |
| melt mass-flow rate | 230°C,3.8kg | ASTM D-1238 | 5.5 g/10min |
| specific heat | cal/g/°C | 0.35 | |
| vicat | 1kg | ASTM D-1525 | 90 °C |
| Coefficient of sponge expansion | cm/cm/°C | ASTM D-696 | 6×10 |
| UL flame retardant rating | 1/8",1/16" | UL 94 | HB |
| heat conduction | ASTM D-177 | 5×10 cal/seccm·°C/cm |
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