Protech 86-370a Hvac Silicone Sealant 10.1 Oz Aluminum

Product Description

The PROTECH 86-370a is a one-part acetoxy cure silicone sealant formulated for HVAC and refrigeration system applications. Manufactured by Rheem Manufacturing Company, it bonds and seals a range of construction and mechanical materials including metal, glass, ceramics, certain plastics, and treated wood surfaces. The aluminum-colored compound cures to a flexible, resilient elastomeric bond that resists continuous mechanical vibration, thermal expansion, and environmental exposure typical in heating, ventilation, air conditioning, and refrigeration installations. It ships in a standard 10.1 oz tube ready for use with a standard caulk gun.

This sealant is suited for general HVAC and refrigeration service work in both residential and light commercial settings. Licensed HVAC technicians and refrigeration mechanics use it for sealing penetrations, bonding dissimilar materials at mechanical joints, and weatherproofing areas subject to thermal cycling. The flexible elastomeric cure makes it appropriate for locations where equipment vibration or seasonal movement would crack a rigid compound.

Key Features

• One-part acetoxy cure formula requires no mixing
• Cures to a flexible elastomeric bond resistant to mechanical vibration and thermal cycling
• Adheres to metal, glass, ceramics, certain plastics, and treated wood
• Aluminum color blends with sheet metal ductwork and mechanical equipment housings
• Standard 10.1 oz tube works with a common caulk gun
• Full cure achieved in 7 days under typical conditions

Compatibility

Designed as an OEM-style silicone sealant replacement for general HVAC and refrigeration system sealing and bonding applications across metal, glass, and wood substrates.

Installation Notes

Installation is typically performed by licensed HVAC technicians or refrigeration mechanics. Power down and de-energize equipment before applying sealant near electrical components, and shut off refrigerant flow before servicing any sealed joints. Surfaces should be clean, dry, and free of oil or loose material before application. Allow the full 7-day cure period before subjecting the bond to sustained mechanical stress or environmental exposure.