257LA - Professional Grade Cloth Duct Tape

Covalence/Tyco

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FEATURES

Std Roll Length: 60.00 yards
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

ADVANTAGES

APPLICATIONS

Sealing and seaming metal and flexible ducts
Mobile home bottom board tape
Hanging polyethylene sheeting in abatement work

MARKETS SERVED

HVAC
Mobile Home Manufacturing
Industrial

COLORS

Silver

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.

PRODUCT CONSTRUCTION

	Type	Mil Thickness

Backing	Polyethylene Coated Cloth	13.00
Adhesive (unwind)	Rubber
Thickness (total)		13.00

PRIMARY PHYSICAL PROPERTIES

	Unwind Side	Liner Side

Adhesion-to-Steel - 180° Peel	45.00 oz/in
Adhesive Activation	Pressure
Tensile Strength	38.00 lbs/in
Testing Info: Thickness, Tensile Strength: ASTM D-1000; Adhesion to Steel: PSTC-1

SECONDARY PHYSICAL PROPERTIES

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	40°F
Minimum Service Temperature	0°F
Maximum Short-Term Temperature	200°F
Flame Resistant	Yes

The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.
It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.
Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.
Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.