These cloth duct tapes all have a backing of waterproof polyethylene film with a carrier of polyester/cotton blend and a natural rubber adhesive, up to 10% elongation and a maximum temperature of 200°F.

• Backing: metalized, waterproof, polyethylene film with a carrier of polyester/cotton blend cloth
• Adhesive: natural rubber
• Tensile strength: 27 lbs./in. width
• Adhesion to stainless steel: 55 oz./in. width
• Thickness: 11 mils
• Elongation: 10%
• Maximum temperature: 200°F
• Applications: HVAC industry to seam, connect, splice, patch and seal sheet metal and flex duct, rigid duct boards, air vents, insulation, fibrous filter banks and pollution collection systems