In the prosthetic process,some material need to be used for unloading of the mold.This material should not be melt and sticked to the mold, which makes failure to the prosthetic.High melting point,strength and flexibility make it possible to fit the mold-surface and not to stick to it in the whole process.
High performace of water solubility makes the welding process easy to operate, where the film need to block the welding slag into the pipe.After the welding, the workers just need to fill water into the pipe, and then, nothing will be left.
