Item | Unit | Index | Standard |
Density | kg/m3 | ≤80 | GB/T6343 |
Water absorption ratio in vacuum | % | ≤8 | GB/T17794-2008 |
Dimension stability 105±3°C,7d | % | ≤10 | GB/T8811 |
Crack resistance | N/cm | ≥2.5 | GB/T10808 |
Reboundrate after compression rate 50% Compression time 72h | % | ≥70 | GB/T6669 |
Anti-ozone Ozone pressure 202mpa 200h | Not cracking | GB/T7762 | |
Aging resistance 150h | Slightly crumpling, no cracks, | GB/T16259 | |
Temperature | °C | -40°C--105°C | GB/T17794 |
ID | thickness(1/4") | 3/8" | 1/2" | 3/4" | 1" |
Inch | pcs in carton | pcs in carton | pcs in carton | pcs in carton | pcs in carton |
1/4"(6mm) | 300 | 168 | 120 | 48 | |
3/8"(10mm) | 210 | 120 | 100 | 36 | 30 |
1/2"(13mm) | 180 | 100 | 80 | 30 | 28 |
5/8"(16mm) | 140 | 90 | 63 | 30 | 24 |
3/4"(19mm) | 120 | 72 | 56 | 26 | 20 |
7/8"(22mm) | 80 | 65 | 42 | 24 | 20 |
1 "(25mm) | 70 | 49 | 36 | 20 | 18 |
1-1/8"(28mm) | 60 | 49 | 36 | 20 | 18 |
1-1/4"(32mm) | 55 | 42 | 30 | 20 | 16 |
1-3/8"(35mm) | 50 | 36 | 30 | 18 | 15 |
1-5/8"(42mm) | 30 | 25 | 16 | 12 | |
1-7/8"(48mm) | 28 | 20 | 12 | 10 | |
2"(51mm) | 24 | 20 | 12 | 9 | |
2-1/8"(54mm) | 20 | 18 | 12 | 9 | |
2-3/8"(60mm) | 20 | 18 | 9 | 9 | |
2-5/8"(67mm) | 18 | 13 | 8 | 8 | |
2-7/8"(73mm) | 18 | 13 | 8 | 8 | |
3"(76mm) | 18 | 12 | 8 | 8 |