Material characteristics of EPDM sealant strip

(1) EPDM sealant strip is a terpolymer of ethylene, propylene and non conjugated dienes. EPDM sealing strip has the advantages of ozone resistance, heat resistance, weather resistance, good impact elasticity, good aging resistance and long service life. It is widely used in automobile, building door and window seals, EPDM door and window sealing strip. The national test shows that there is no crack at minus 40~120 ℃, no change is qualified, the expansion strength is 7.85mpa, the eternal deformation is 32.8%, and the anti-aging 100 ℃ cx168h indicators reach the national specifications.

(2) EPDM foamed sealing strip. EPDM sealant strip is composed of EPDM dense rubber and foamed sealing strip. After special vulcanization process, the two materials are closely separated together. Compared with ordinary sealing strip, the sealing strip produced by this successful separation has strong assembly ability, anti-collision buffer ability, good sealing performance and easy assembly, which can improve the ozone aging resistance of the product, Thus, the service life of the sealing strip is well extended. The EPDM foaming sealing strip has good corrosion resistance, wear resistance and high temperature resistance. It does not crack at 40 ~ 90 ℃, and the service life is more than 30 years. The appearance is lubricated carefully, with good resilience, average foaming and reliable sealing performance.