No | Item | The standard | Test result | ||
1 | Appearance | Have no grain, no agglomerations, no skinning, and no bubble. | Pass the standard | ||
2 | Density (g/cm 3 ) | ±0.1 | 1.438 | ||
3 |
Droop degree
mm |
Uprightness | ≤3 | 0 | |
Level | No damage | No damage | |||
4 | Skinning time ( h ) | ≤3 | 0.33 | ||
5 | Elastic recovery ratio ( % ) | ≥80 | 92 | ||
6 | Extrusion ability ( ml/min ) | ≥80 | 116 | ||
7 |
Tensile modulus
( Mpa ) |
23ºC | ≤ 0.6 | 0.7 | |
8 | Cold-hot adhesive | No damage | No damage | ||
9 | Under water adhesive | No damage | No damage | ||
10 | UV radiation | No damage | No damage | ||
11 | Definite Elongation | No damage | No damage |