WesBell Electronics
Alpha FIT 321 Heat Shrink Tubing

Alpha FIT 321 Adhesive Lined Tubing


3 to 1 Adhesive Irradiated Polyolefin


Characteristics:


  • Temperature range -55°C to +125°C
  • 3 to 1 Shrink Ratio
  • 4 foot lengths or spools
  • Colors: Black

Insulation:


  • Tensile strength: 1300 psi
  • Ultimate elongation: 300%
  • Longitudinal shrinkage: -15%
  • Flammability: Self extinguishing

Chemical Properties:


  • Corrosive effect: Passes copper stability test
  • Fungus resistant: No growth

Applications:


  • Increased Wall thickness
  • Permanent bonding adhesive
  • Water resistant adhesive inner lining
  • Connectorized cable repair
  • Water resistant and encapsulation
  • Environmental and outdoor protection
  • XTRA Guard 1, XTRA Guard 2 and XTRA Guard 3 applications

Part Number Minimum I.D. Minimum Recovered I.D. Recovered Wall Thickness
Alpha FIT 321 1/8 .120" .040" .040"
Alpha FIT 321 1/4 .240" .080" .040"
Alpha FIT 321 1/2 .470" .160" .070"
Alpha FIT 321 1" .940" .320" .100"
Alpha FIT 321 1 1/2 1.57" .51" .0100"

 

 

 

Alpha FIT 321 Adhesive Tubing

Alpha FIT 321 Heat Shrink Tubing

This page focuses on the Alpha FIT 321 heat shrink tubing. It's a 3 to 1 shrinkable tubing manufactured with an adhesive lined irradiated polyolefin and a temperature range of -55°C to 110°C. It features an increased wall thickness for durability, water resistant adhesive inner lining and permanent bonding adhesive. Alpha Wire recommends using this 3 to 1 shrinkable tubing with their Xtra Guard 1, Xtra Guard 2 and Xtra Guard 3 electronic cables.

In the manufacturing process FIT 321 heat shrink tubing is used with wire and cable harnesses, cable and connector protection and covering wire and cable splices to be sure that the conductor doesn't get water or damaged. It comes in black and white colors.

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