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Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
PMMA HI855H LX MMA KOREA
LGMMA®
lighting,Phone back cover,Home appliance doors and windows,container,Building panels,Home appliance cover,Plaque
transparent,Impact resistance
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Plastic Datasheets
| thermal performance | Test Condition | Test Method | LX MMA KOREA/HI855H |
|---|---|---|---|
| Coefficient of sponge expansion | ASTM D-696 | 6×10 cm/cm/°C | |
| heat conduction | ASTM D-177 | 5×10 cal/seccm·°C/cm | |
| Hot deformation temperature | 18.56kg | ASTM D-648 | 88 °C |
| melt mass-flow rate | 230°C,3.8kg | ASTM D-1238 | 4.0 g/10min |
| Shrinkage rate | ASTM D995-51 | 0.4-0.8 % | |
| specific heat | 0.35 cal/g/°C | ||
| UL flame retardant rating | 1/8",1/16" | UL 94 | HB |
| Vicat softening temperature | 1kg | ASTM D-1525 | 90 °C |
| mechanical properties | Test Condition | Test Method | LX MMA KOREA/HI855H |
|---|---|---|---|
| Bending modulus | ASTM D-785 | 21.000 kg/cm | |
| bending strength | ASTM D-790 | 800 kg/cm | |
| Elongation at Break | ASTM D-638 | 40 % | |
| Impact strength of cantilever beam gap | Izod Notched | ASTM D-256 | 6.0 kg·cm/cm |
| Rockwell hardness | ASTM D-785 | 55 M-scale | |
| tensile strength | ASTM D-638 | 450 kg/cm |
| Electrical performance | Test Condition | Test Method | LX MMA KOREA/HI855H |
|---|---|---|---|
| Dielectric constant | 60Hz | ASTM D-150 | 3.9 |
| Dielectric strength | 4KV/S | ASTM D-149 | 15 KV/mm |
| Dissipation factor | 60Hz | ASTM D-150 | 0.04 |
| Volume resistivity | ASTM D-257 | >15 Ω.m |
| Physical properties | Test Condition | Test Method | LX MMA KOREA/HI855H |
|---|---|---|---|
| reflectivity | ASTM D-542 | 1.49 | |
| transparency | 3.2mm | ASTM D-1003 | 90 % |
| Water absorption rate | 24h | ASTM D-570 | 0.4 % |