3M™ Polyurethane Construction Sealant offers multipurpose bonding and long-lasting seals. Creates elastic, flexible seals on expansion joints. Seals a wide variety of materials including plastics, aluminum, steel, and coated metal. Construction Sealant, 600mL, Gray This product contains a chemical that is regulated under California Proposition 65. Warning: This product contains a chemical known to the State of California to cause cancer. -