3M 7000000945 Polyurethane Adhesive Sealant 560 White

Product Description

The 3M 7000000945 is a one-component, moisture-curing polyurethane adhesive sealant that forms permanent elastic bonds. Sold as 3M Polyurethane Adhesive Sealant 560 in white, it ships in a 10.5 fluid ounce cartridge ready for standard caulk guns. The single-component formula requires no mixing and cures on contact with ambient moisture, producing a flexible, durable seal that resists vibration, impact, and weathering. Licensed tradespeople across HVAC, plumbing, marine, and construction trades reach for this product when they need a bond that stays flexible under thermal cycling and mechanical stress.

This sealant is suited for applications requiring a strong, permanent bond combined with elastic movement accommodation. Typical uses include sealing joints and seams on assemblies that involve dissimilar materials or surfaces subject to expansion and contraction. It performs in both residential and commercial jobsite conditions and is applicable in environments where long-term adhesion to coated or uncoated substrates is required.

Key Features

• One-component formula — no mixing required, ready to apply directly from cartridge
• Moisture-curing chemistry produces permanent, elastic bonds
• Bonds to plastics, FRP, SMC, aluminum, steel, coated metal, and wood
• White color suitable for visible seams and finish-sensitive applications
• 10.5 fluid ounce cartridge fits standard caulk gun dispensers
• Flexible cure resists vibration, impact, and thermal movement

Compatibility

Designed to bond and seal a wide variety of substrates including plastics, fiberglass-reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal, and wood.

Installation Notes

Application is performed using a standard caulk gun with a 10.5 fluid ounce cartridge barrel. Surface preparation is critical — clean substrates of oil, dust, and loose material before applying the sealant. Allow adequate ventilation during application and curing, as moisture-curing polyurethane products release byproducts during the cure process. Follow applicable building and mechanical codes for sealant use in rated assemblies or occupied spaces.

Technical Specifications

• Product Type: Polyurethane Adhesive Sealant
• Color: White
• Volume: 10.5 fluid ounces
• Container Type: Cartridge
• Cure Type: One-component moisture curing
• Weight: 0.88 pounds
• UPC: 00021200490569

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000945