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3M 921XL
Adhesive Transfer Tape with Extended Liner

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".
Backing Adhesive
(unwind)		 Thickness
(total)		 Liner Type
(outer)
  Acrylic 1.00 mil Paper (2.5 mil., blue printing)

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

Min Application
Temp		 Min Service
Temp		 Max Short-Term
Temp		 Max Long-Term
Temp
50 °F 0 °F 200 °F 150 °F
Adhesive Tape Features
  • 1.0 mil. A-70 acrylic adhesive
  • 2.5 mil. white paper liner
  • Liner extension: 1/16in.
  • Low initial adhesion
  • Good shear holding power
  • Easy liner starting ane removal
  • Extended liner
Adhesive Tape Applications
  • Mounting and joining where repositionability may be desired
Adhesive Tape Markets Served
Adhesive Tape Colors
  • Clear

Comparable products

3M 921XL View Datasheet
Adhesive Transfer Tape with Extended Liner
Backing Adhesive Thickness Adhesion
 N/A   Acrylic   1.00mil   20.00oz/in 

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