474, ***Discontinued*** Vinyl Tape-Flame Resistant, 3M, adhesive tape datasheet

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3M 474
***Discontinued*** Vinyl Tape-Flame Resistant

General Information

***3M discontinued this product see Compar-A-Tape*** A 6.3 mil. flame retardant, grey vinyl backing tape with a rubber adhesive used for many sealing applications. 474's tape construction will not support combustion. Best results for tape application and adhesion are attained when applied on a clean, dry surface at temperatures between 60 - 80°F. Tape is ideal for warm and cold air ducts; either high or low velocity systems and dust collecting systems. Temperature operating range is 40 -170°F. Low moisture vapor transmission rate of 474 tape allows use as a vapor barrier seal in many applications. Conformability allows greater system efficiency when used in the sealing of hot/ cold air handling ductwork. Store in a clean and dry environment between 60 - 80°F and 40 - 50% relative humidity.

Backing	Adhesive (unwind)	Thickness (total)	Liner Type (outer)
PVC - Polyvinylchloride	Rubber	6.30 mil

Adhesion to Steel 180° Peel	Adhesive Activation	Tensile Strength	Elongation Percent
23.00 oz/in	Pressure	20.00 lbs/in	210.00%

Min Application Temp	Min Service Temp	Max Short-Term Temp	Max Long-Term Temp
50 °F	40 °F	170 °F

Adhesive Tape Features

Pigmented vinyl backing
Rubber adhesive
Grey colored tape
5.0 mil. pimented backing is abrasion resistant
Is readily conformable to many irregular surfaces
Grey color blends with most duct material
Rubber adhesive has good initial bond
Flame resistant, will not support combustion
Can be certified to meet F.A.R. 25.853
Rubber adhesive
Longer potential application life
Effective seal
Improves appearance of final installation
Good sealing properties
Standard widths = 1", 2" and 3"

Adhesive Tape Applications

Ideal for both warm and cold air ducts; either high or low velocity systems and dust collecting systems
Low moisture vapor transmission rate allows use as a vapor barrier seal in many applications

Adhesive Tape Markets Served

Adhesive Tape Colors

Gray

Comparable products

3M 474

***Discontinued*** Vinyl Tape-Flame Resistant

Backing	Adhesive	Thickness	Adhesion
PVC - Polyvinylchloride	Rubber	6.30mil	23.00oz/in

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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.