Description
LonghuaPP-(i)(j)/WT 20/ BK20 are flame-retardant polypropylene films/sheets. Meet to ROHS directive free of PBCD contents and UL94 V-0 & VTM-0 listed. They are widely used in power supply, TV/monitors, business equipments and foil laminated for insulation and shielding purposes.
UL File Number: E254551
| Grades | Color | Textures | Thicknesses | Widths |
| LonghuaPP-WT20 | White | Matte/ velvet | 0.125～0.25 （0.005"～0.01"） | 610（2′） |
| LonghuaPP-WT17 | Fine matte/ velvet | 0.400～1.500 （0.016"～0.060"） | ||
| LonghuaPP-BK20 | Black | Matte/ velvet | 0.125～0.250 （0.005"～0.010"） | |
| LonghuaPP-BK18 | Fine matte/ velvet | 0.400～1.500 （0.016"～0.060"） |
Typical Property Values
| Properties | Test Methods | Units | Values | |
| PHYSICAL | ||||
| Specific Gravity | ASTM D792 | g/cm3 | 1 | |
| Water Absorption Equilibrium，24 HRS | ASTM D570 | % | 0.06 | |
| MECHANICAL | ||||
| Tensile Strength | ASTM D882 | psi | 3,000 | |
| MPa | >20 | |||
| Elongation at break | ASTM D882 | % | 100 | |
| Tear Strength Propagation | GB/T529 | KN/M | 100 | |
| THERMAL | ||||
| Heat Deflection Temp | ASTM D648 | ℃ | 106 | |
| ELECTRICAL | ||||
| Dielectric Breakdown–Volts | ||||
| @5mils | ASTM D149 | KV | 11 | |
| @10mils | ASTM D149 | KV | 22 | |
| @17mils | ASTM D149 | KV | 25 | |
| @30mils | ASTM D149 | KV | 32 | |
| @40mils | ASTM D149 | KV | 38 | |
| RTI | Elec | UL746B | ℃ | 115 |
| Imp | 115 | |||
| Str | 115 | |||
| Dielectric Constant@1MHZ | ASTM D150 | — | 2.6 | |
| Dissipation Factor@1MHZ | ASTM D150 | — | 0.0009 | |
| Volume Resistivity@25℃,50%RH | ASTM D257 | Ohm-cm | 1016 | |
| Surface Resistivity@25℃,50%RH | ASTM D257 | Ω/□ | 1015 | |
| FLAMMABILITY | ||||
| UL Flammability | UL BULLETIN 94 | |||
| @≥16 mils | UL94 | V-0 | ||
| @＜16 mils | UL94 | VTM-0 | ||
| Environment-Protection Index | LonghuaPP-WT20/17、LonghuaPP-BK20/18 |
| Hg | N.D（＜2ppm） |
| Cr(Ⅵ) | N.D（＜2ppm） |
| Cd | N.D（＜2ppm） |
| Pb | ＜50ppm(Sony Recommend:＜100ppm) |
| PBB | N.D（＜5ppm） |
| PBDE | N.D（＜5ppm） |