Loctite LOC30526 Spray-a-gasket Sealant 9 Oz

Product Description

The LOCTITE LOC30526 is a spray-applied gasket sealant designed for use on rigid, close-tolerance flanged joints in HVAC, plumbing, and mechanical systems. Sold as the 99MA formula in a 9 oz aerosol can, it creates a flexible, oil-resistant seal between mating surfaces, filling minor surface imperfections and preventing leaks at joints where a traditional cut gasket may not be used. Licensed mechanics, HVAC technicians, and plumbers reach for this product when assembling or re-sealing metal-to-metal flange connections during service or installation work.

This sealant is suited for residential and light commercial applications where flanged connections must be sealed against water, oil, and moderate temperature exposure. Common use cases include sealing sheet metal HVAC flanges, pump housings, access panels, and other rigid mechanical joints where a sprayed-on barrier is preferred over form-in-place gasket compounds. The aerosol delivery format allows even coverage on both mating surfaces before assembly.

Key Features

• Aerosol spray format delivers even, controlled coverage on flanged mating surfaces
• 99MA formula resists oil, grease, and common shop fluids
• 9 oz can size suitable for repeated field or shop use
• Flexible cured film accommodates minor vibration and thermal cycling
• Compatible with metal-to-metal and metal-to-gasket surface assemblies

Compatibility

Designed as an OEM-style gasket sealant for use on rigid flanged joints in HVAC, plumbing, and general mechanical applications where spray-applied sealant is specified.

Installation Notes

Application should be performed by a qualified HVAC technician, plumber, or mechanic in a well-ventilated area. Shut down and de-energize or de-pressurize the system before disassembling any joint for resealing. Clean both mating surfaces of oil, debris, and old sealant before applying. Allow adequate cure time before returning the assembly to service per the system manufacturer's requirements.

Technical Specifications

• Formula: 99MA
• Net Contents: 9 oz
• Delivery Format: Aerosol Spray
• Unit of Measure: Each
• UPC: 079340305267

Standard Information

• Brand: LOCTITE
• Manufacturer Part Number: LOC30526