3M 7100031672 Industrial Sealant Reddish Brown

Product Description

The 3M 7100031672 is a reddish brown, brushable industrial sealant that air dries to a flexible, rubbery seal. Designed for sealing joints, seams, and penetrations in demanding environments, it bonds to aluminum, cold rolled steel, galvanized steel, glass, and many plastics. Once cured, it resists weather, water, oils, fuels, detergents, and soap solutions. HVAC sheet metal contractors, plumbers, and industrial maintenance technicians use this sealant where a durable, flexible seal is needed on dissimilar materials. It applies easily with a brush and conforms to irregular surfaces without cracking or shrinking.

This sealant is well suited for sealing ductwork joints, pipe penetrations, metal enclosures, and general industrial fabrication applications. It performs in both indoor and outdoor environments where exposure to moisture, weathering, or petroleum-based fluids is a concern. The brushable consistency makes it practical for field application on complex geometries and tight spaces where a caulk gun or spray application is not appropriate.

Key Features

• Air dries to a flexible, rubbery seal that accommodates movement and vibration
• Brushable consistency for easy application on irregular or complex surfaces
• Excellent adhesion to aluminum, cold rolled steel, galvanized steel, glass, and many plastics
• Resists weather, water, oils, fuels, detergents, and soap solutions
• Reddish brown color for visual inspection and identification of sealed areas

Compatibility

Designed for use on aluminum, cold rolled steel, galvanized steel, glass, and many plastics where a brushable, flexible sealant is required for industrial or HVAC applications.

Installation Notes

Surface preparation is critical — clean all substrate surfaces free of dirt, grease, and loose material before application. Apply with a brush to the intended joint or seam and allow to fully air dry before returning the assembly to service. Follow applicable codes and manufacturer guidance for sealant use in pressurized or confined systems. This product is intended for installation by qualified trade professionals familiar with industrial sealing applications.

Technical Specifications

• Color: Reddish Brown
• Application Method: Brushable
• Cure Type: Air Dry
• Cured State: Flexible, Rubbery
• Weight: 9.62 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 00021200196799

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100031672