$48.43$493.35 Before Tax

Gamma’s 3 to 1, flattened heat shrink made for printing on thermal transfer printers that is resistant to rub and abrasion.


Gamma Electronics 321-FLT heat shrink tubing is a polyolefin, 3 to 1 heat shrink that has been designed and manufactured to be as flat as possible for the purposes of printing on the tubing.  It is stocked in black, white, and yellow, (with more colors available upon request).  Sizes range from 1/16 of an inch up to 2 and a quarter inches.

For use with the Gamma Bolt printer we recommend not going above 1.5 inch tubing.  The Gamma Mark III Plus is capable of printing up to the largest size of of GMT-321-FLT, (2.25 inches).

Pricing is per Spool/Bag

Additional information


1/16", 3/32", 1/8", 3/16", 1/4", 3/8", 1/2", 3/4", 1", 1.5", 2", 2.25"


Black, White, Yellow

Key Features

  • 3:1 Shrink Ratio
  • MILSPEC AS-23053/5 CL1&3
  • UL & CSA
  • RoHS
  • Operating Temperature: -45° to 135° Celsius
  • Shrink Temperature: 90° Celsius Flame Retardant
  • Environmentally Friendly
  • Highly Flame Retardant (Except for Clear)
  • UL VW-1
  • Standard Colors are White, Yellow and Black
  • Other colors available upon request