Addolink® TR

Addolink® TR is 1,1,1-trimethylol propane. Acts as a crosslinking agent for polyurethane elastomers (hot- and cold-curing cast systems). The reaction between Addolink® TR and polyisocyanates leads leads to three-dimensional crosslinking of the hard segment material; this reduces the segregation of the hard and soft segments in the elastomer. This effect can be utilized to reduce the shore hardness of soft elastomers. It also improves their resistance to swelling, but reduces their tear strength. In hard elastomers it reduces shrinkage phenomena and stress cracking. It has a shelf life of 12 months.