Q. I have a five-stage washer used to clean and rinse metal parts prior to powder coat painting. The walls of the washer are stainless steel and the water temperature can reach 160°. I have experienced some leaking in the wall seams. What can you recommend for a non-silicone based caulk or sealant for repair? D.C.
A. It may be possible to use a quick set epoxy to fill these leaks. Additionally, some of these contain filler metal additives to increase strength. Others are marketed as flexible epoxies. Most have very good adhesion to metals, good temperature resistance and very good chemical resistance. Let me know if this helps. Good luck.