Items |
Index |
Pencil hardness (scratch) |
≥2H |
tensile bond strength MPa |
standard condition |
≥2.0 |
after soaking |
≥2.0 |
wearability(750g/500r)/g, |
≤0.03 |
artificial weathering ageing resistance d(400h) |
No bubble, no peeling, no crack; Powder ≤1 grade, △E≤6.0 |
impact resistance (1) |
steel ball,500g, 100cm.No crack, no peeling |
shock absorption |
≥4% |
compression strength≥ |
50 MPa |
skid resistance(dry friction coefficient) |
≥0.50 |
skid resistance(wet friction coefficient) |
≥0.70 |
water resistance (168h) |
No bubble, no peeling, no discoloration |
chemical resistance |
oil resistance (120# gasoline, 72h) |
No bubble, no peeling, no discoloration |
resistance to alkali(20%NaOH,72h) |
No bubble, no peeling, no discoloration |
acid fastness(10%H2SO4,48h) |
No bubble, no peeling, no discoloration |
fire resistance(GB8624-2012) |
B1-class (retardant materials) |
Cigarette ignition resistance(GB/T15102-2006) |
No spots, crack, blister and other changes |
Shock absporption,dB(GB/T11982.2-1996) |
≥10 |