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Covalence/Tyco 257LA
Professional Grade Cloth Duct Tape

General Information
257LA is a 13 mil professional grade cloth duct tape used for sealing and seaming metal and flexible ducts, mobile home bottom board tape and handling polyethylene sheeting in abatement work.
Backing Adhesive
(unwind)		 Thickness
(total)		 Liner Type
(outer)
Polyethylene Coated Cloth Rubber 13.00 mil  

Adhesion to Steel
180° Peel		 Adhesive Activation Tensile Strength Elongation Percent
45.00 oz/in Pressure 35.00 lbs/in  

Min Application
Temp		 Min Service
Temp		 Max Short-Term
Temp		 Max Long-Term
Temp
40 °F 0 °F 200 °F  
Adhesive Tape Features
  • 13 mil heavy duty construction
  • High thread count cotton cloth - polyethylene backing
  • Superior adhesions to steel with excellent tack
  • Grey natural rubber adhesive
  • High tensile strength
  • Designed for superior conformability to most surfaces
  • Easy unwind with no twist or curl
  • Meets UL-723
  • Printed for inspector identification
  • Flame spread: 20
  • Smoke development: 10
Adhesive Tape Applications
  • Sealing and seaming metal and flexible ducts
  • Mobile home bottom board tape
  • Hanging polyethylene sheeting in abatement work
Adhesive Tape Markets Served
Adhesive Tape Colors
  • Silver

Comparable products

Covalence/Tyco 257LA View Datasheet
Professional Grade Cloth Duct Tape
Backing Adhesive Thickness Adhesion
 Polyethylene Coated Cloth   Rubber   13.00mil   45.00oz/in 

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