Polyurethane sealants; Sealants for buildings; Polyurethane spray foam for sealing mine shafts; Polyurethane spray foam for use as insulation in exterior home walls, cement blocks, window fenestration, marine insulation, and extruded profile channel fill; Aerosol foam sealant for use in connection with residential and commercial construction projects; Insulating materials made of polyurethane foam; Insulating materials, namely, polyurethane foam and polyethylene foam; Polyurethane spray foam for door and window insulation, , namely, polyurethane insulation systems, namely, polyurethane foams for use as building insulation, polyurethane foam sealants for filling in gaps and cracks, and low pressure polyurethane spray foam sealants sold as a unit; Polyurethane spray foam for door use in insulation, sealing, packaging, filling and marine flotation applications, namely, polyurethane foam kit comprised of polyurethane spray foam and foam feed tanks and refills thereof, plastic tubing, polyurethane foam dispensers