... /Slump, mm ≤1 ASTM D2202-00(2006)Tack Free Time, min. ≤25 GB/T 13477.5-2002 Extrudability, ... tested at 23°C±2°C, RH50%±5% 7 days :Hardness, 24H,Shore A ≥18 ASTM D2240-05Hardness, 7d, Shore ... ≤1extrudability, ml/min.200~300ISO 8394-(2010)tack-free time, min20~50ASTM C679-(2009)recovery of elastic, %≥90ISO ... 2.0 Acceptable Water-UV aging tester SZW-3 2 2.0 Acceptable Hardness tester LA-J 1 2.0 Acceptable ...