Profile: Spas Seal Cover Co. focuses on welded seam sealing processes. We deliver walk-on covers, which are designed for superior surface weight and temperature resistance. Our Spa Seal 1000S features laminated core, 12 oz mildew and chemical resistant double laminated bottom fabric, as well as UL approved safety cover. Our cover lift line includes E-Z lifter, cover valet and cover caddy. Our accessory line includes security strap, wind strap and hardware packs.