3M 7000000941 Polyurethane Sealant 540 White 10.5 Oz

Product Description

The 3M 7000000941 is a polyurethane sealant from the 540 Series, packaged in a 10.5 fluid ounce cartridge. It is formulated to deliver flexible, durable sealing in construction, HVAC, and general trade applications where joint movement, vibration, or weathering are factors. The white color suits interior and exterior joints on light-colored substrates. Weighing 0.88 pounds per cartridge, it dispenses from a standard caulk gun. Polyurethane chemistry provides strong adhesion to a wide range of substrates including metal, wood, concrete, and masonry, making it a dependable choice for sealing penetrations, seams, and gaps in mechanical systems and building envelopes.

This sealant is suited for residential and commercial trade applications where a paintable, flexible seal is required. Typical uses include ductwork penetrations, pipe chase sealing, window and door perimeter joints, expansion joints, and general weatherproofing. HVAC technicians, plumbers, and general contractors commonly reach for a cartridge-format polyurethane sealant when sealing around conduit entry points, pipe sleeves, or mechanical equipment curbs. The 540 Series formulation is appropriate for both interior and exterior joints subject to thermal movement.

Key Features

• Polyurethane chemistry delivers flexible, long-lasting adhesion on metal, wood, concrete, and masonry
• White color suits light-colored substrates and is paintable after cure
• 10.5 fluid ounce cartridge compatible with standard caulk guns
• Suitable for interior and exterior applications including HVAC penetrations and building envelope sealing
• Single-component formula — no mixing required prior to application

Compatibility

Designed as an OEM-style cartridge sealant for use in general construction, HVAC, plumbing, and mechanical trade applications requiring a flexible polyurethane seal.

Installation Notes

Application is performed by licensed or journeyman tradespeople using a standard 10 oz or 11 oz caulk gun. Surfaces should be clean, dry, and free of loose material before sealant is applied. Tool the joint promptly after application for best adhesion and appearance. Follow applicable building and mechanical codes for fire-rated or air-barrier assemblies where sealant is part of the assembly.

Technical Specifications

• Series: 540
• Color: White
• Net Fill: 10.5 fluid ounces
• Package Weight: 0.88 pounds
• UPC: 00021200490545
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000941