3M 7000121524 Polyurethane Adhesive Sealant 560 Gray

Product Description

The 3M 7000121524 is a one-component, moisture-curing polyurethane adhesive sealant formulated to create permanent elastic bonds on a wide range of substrates. Sold as the 3M Polyurethane Adhesive Sealant 560 in gray, it ships in a 10.5-ounce cartridge compatible with standard caulk guns. Once cured, the bond remains flexible, making it suitable for joints and assemblies subject to vibration, thermal cycling, or movement. Licensed tradespeople and experienced installers use this product where a structural-grade, paintable sealant is required in demanding indoor and outdoor environments.

This sealant is used across a broad range of trade applications including HVAC fabrication, panel assembly, marine and transportation manufacturing, and general construction. It performs well on dissimilar substrate joints where movement or stress is anticipated. Typical installation scenarios include bonding and sealing FRP panels, aluminum framing, coated metal assemblies, and wood-to-metal transitions. It is suited for both residential and light commercial work where a durable, flexible, gray-finished bond line is acceptable.

Key Features

• One-component formula — no mixing required, ready to apply directly from the cartridge
• Moisture-curing chemistry forms a permanent elastic bond after exposure to ambient humidity
• Bonds to plastics, FRP, SMC, aluminum, steel, coated metal, and wood
• Gray color finish blends with metal and composite panel assemblies
• 10.5-ounce cartridge fits standard-size caulk application guns

Compatibility

Designed for bonding and sealing applications on plastics, FRP, SMC, aluminum, steel, coated metal, and wood substrates as stated by the manufacturer. No specific equipment model or system compatibility is listed for this product.

Installation Notes

Application should be performed by qualified tradespeople familiar with adhesive sealant products and substrate preparation requirements. Surfaces must be clean, dry, and free of oil, dust, and loose material before applying the sealant. Allow adequate cure time based on ambient temperature and humidity before loading the joint. Avoid applying to surfaces that will exceed the rated temperature or chemical exposure limits of the cured sealant.

Technical Specifications

• Weight: 0.88 pounds
• Net Volume: 10.5 ounces
• Container Type: Cartridge
• Color: Gray
• Cure Type: Moisture-curing
• Components: One-component
• UPC: 00021200415968

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121524