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The 3M 7100200223 is a one-component, moisture-curing polyurethane adhesive sealant supplied in a 50-gallon open head drum. It cures to form a permanent elastic bond and delivers strong adhesion across a wide range of substrates. The sealant resists flex and movement after cure, making it well suited for structural bonding and sealing applications where vibration, thermal cycling, or joint movement is a factor. Licensed tradespeople, assembly technicians, and fabricators working with mixed-material assemblies are the primary installers of this product.
This sealant is used in applications requiring a durable, flexible bond between dissimilar materials. Typical use cases include bonding and sealing joints in transportation, marine, construction, and industrial fabrication settings. It is appropriate for both interior and exterior applications where a long-lasting elastic seal is required on plastics, composites, metals, and wood substrates.
Designed for bonding and sealing applications on a wide variety of substrates including plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal, and wood.
Application of bulk drum quantities typically requires appropriate dispensing equipment rated for high-viscosity polyurethane materials. Surfaces should be clean, dry, and free of oils or contaminants before applying the sealant. Follow all applicable safety data sheet guidance for ventilation and personal protective equipment when working with moisture-curing polyurethane products. Keep uncured material away from moisture sources until application to prevent premature cure in the container.
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