Leak Lock®
Leak Lock is a premium resin-based pipe joint sealant and thread compound manufactured by Highside Chemicals. It is widely used by plumbing, HVAC, and refrigeration professionals to create high-strength, permanently flexible, fluid-tight seals that resist extreme vibrations and temperature changes.
Highside Chemicals, Inc., established in 1936, has been manufacturing high-quality chemical solutions for the maintenance, installation, and repair of refrigeration, air conditioning, and plumbing systems for over 85 years. Proudly made in the USA, our products are trusted by professionals in the field and rigorously tested to perform under demanding conditions. From industry-recognized solutions like Leak Lock® to a growing portfolio of specialty products, we are committed to delivering reliability, consistency, and results. Backed by responsive customer service and technical support, Highside Chemicals continues to be a dependable partner for technicians who want cost-effective solutions without sacrificing performance.