Hi-Shrink Tape is a tough, flexible, heat shrinkable polyester film.

When wrapped around an object and heated, Hi-Shrink Tape has the unique ability to shrink and apply pressure to the surface of composite parts. This simple method of pressure application is used to advantage in many industries.

Product Description:

  • .003” (0.075mm) thick Polyester film
  • Available on 1.5” (38mm) ID or 3.0” (76mm ) ID cores
  • Standard widths of 0.5” (12mm) wide up to 2.5” (63.5mm) wide

Product Benefits

  • Good film for thin walled composite parts
  • Applies low to moderate shrink force depending on shrink % that you specify
  • Thin film minimizes height of ‘cello lines’ on cured part
  • Commonly used for consolidating flexible ductwork and silicone hoses during cure
  • Suitable for cure temperatures up to 330°F (165°C)

Product Characteristics

  • Available in non-coated, 1-side, or 2-side release coated versions
  • Custom slit widths and roll lengths available upon request
  • Available shrink percentage ranges from 5% up to 20% shrink, and is customized to your application based on amount of compaction force required

Thermostat icon. Up to 165°C


Product Release Coated Thickness MD Shrink %
(lbs/inch of width)

(lbs/inch of width)
312R 0.003 in (0.075 mm) 12% 10.07 60 lbs
320S 0.003 in (0.075 mm) 20% 10.0 67 lbs
320R 0.003 in (0.075 mm) 12% 12.38 70 lbs

Shrink force vs temperature graph

Shrink force vs temperature graph