BLUE MAGIC is an all purpose, non-seizing, industrial grade thread sealing compound that produces a leakproof seal on all types of plastic and metal (including stainless steel) threaded connections. BLUE MAGIC is a smooth, grit free, completely homogenized, blue industrial grade paste. BLUE MAGIC will not transfer any taste or odor to the system being sealed. Excellent for food and water systems. BLUE MAGIC will never harden and is an anti-galling compound making it possible to disassemble pipes and bolts easily after years of service. Suitable for PVC and CPVC.