I am looking for a type of foam (or other material) that would be suitable to dame up the bell of a pipe. I need it to be dense enough to be able to expand in the pipe when pushed in, but also able to contour to small variations. The foam also needs to be durable enough to be taken in and out...
Would molding a Plastisol substance with another type of plastic or rubber help within it cause any problems with either one. If so with this problem be more pronounces if the to were to be required to deform and stretch frequently.
I work in the cast iron pip industry, and I need a process of protecting and sealing the bell of the pip during lining. I had the idea of using an air bladder (such as an inflatable raft) to protect the bell during lining. Does anyone know of a company or process of producing custom shaped air...
