| 摘要 |
A putty composition for trains is provided to retain mechanical properties equal to a conventional epoxy-based putty composition, to remarkably reduce dry time and the weight of trains due to low specific gravity. A two-component putty composition is used by mixing a base material and a hardener. The base material includes a bisphenol-A 25~35 weight%, an aliphatic glycidylether 5~15 weight%, and talc 45~60 weight%. The hardener includes an aliphatic amine 18~30 weight%, TEPA(triethylpropylamine) 5~10 weight%, DMP-30 5~15 weight% and talc 40~56 weight%, and the rest of inevitable impurity. |
