physical charateristics 物理特性 heatresistance耐热必melting point:hook230.c,loop 180.c maintains normal bonding performance during 1000 hourscoldresistance耐寒性still work when temperature is-20.c,and the lower the temperature is,the laiger the strength becomes,but with a decrease in durability.-20℃ 仍可使用,越低温拉力越强,但耐久性降.waterresistance耐水性retains 50% of closure strength in water and recovers 100% of strength a fterchemicalsresistance耐药性alkali:within 50% ofaikaline soda.within28% ofammonia.acid:within 2.5% of hydrochloric acid,15% of sulphuric acid,and 2.5% of nitric acid.碱性苏打50%,氨28%,盐酸2.4%,硝酸3.5%以下仍能发挥功效.strength test 接着强度测试wheel cycle使用次数\strength测试项目peel strength剥离强度(g/cn)shear strength横向拉力(g/cm2)original(使用前)