921XL - Adhesive Transfer Tape with Extended Liner

3M

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FEATURES

Std Roll Length: 1000.00 yards
1.0 mil. A-70 acrylic adhesive
2.5 mil. white paper liner
Liner extension: 1/16in.

ADVANTAGES

Low initial adhesion
Good shear holding power
Easy liner starting ane removal
Extended liner

APPLICATIONS

Mounting and joining where repositionability may be desired

MARKETS SERVED

Marketing Specialist
Textiles
Industrial
Commercial Printing

COLORS

Clear

GENERAL INFORMATION

A 1.0 mil. transfer tape with A-70 acrylic adhesive primarily used for mounting and joining applications. A-70 is a soft pressure-sensitive acrylic adhesive system. If also features low initial adhesion to paper and many other materials with minimal bond build up. 921XL also consists of an extended liner (XL), that extends beyond the width of the adhesive to provide easy liner starting and removal. The liner extension provides a dry edge on each side of the tape for easy removal, however, this decreases the adhesive coating by 1/8in. overall. The liner is printed with the message, "Remove to Expose Adhesive".

PRODUCT CONSTRUCTION

	Type	Mil Thickness

Backing	None
Adhesive (unwind)	Acrylic	1.00
Liner Type (outer)	Paper (2.5 mil., blue printing)
Thickness (total)		1.00

PRIMARY PHYSICAL PROPERTIES

	Unwind Side	Liner Side

Adhesion-to-Steel - 180° Peel	20.00 oz/in	20.00 oz/in
Adhesive Repositionable	Yes
Adhesive Activation	Pressure
Testing Info: Peel Adhesion: ASTM D3330

SECONDARY PHYSICAL PROPERTIES

UV Resistant

Yes

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	50°F
Minimum Service Temperature	0°F
Maximum Long-Term Temperature	150°F
Maximum Short-Term Temperature	200°F

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.