Poly-urethane from McMaster Carr. About a 80 or 90 durometer. you can also buy casting urethane from McMaster Carr in 88 durometer. It is a 2-part urethane. I have used it to re-cast rubber parts as well as make new parts. I have made bushings new again by removing all the rubber and re-casting with urethane. Urethane is impervious to almost every chemical

It would work great for building transmission mounts if you cast it right.


The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me