Ecm Industries Llc HST-ASTA Heat Shrink Tubing Assorted

Product Description

The ECM INDUSTRIES LLC HST-ASTA is an assorted heat shrink tubing kit designed for insulating, bundling, and protecting wire splices and terminations in electrical and low-voltage wiring applications. The kit includes tubing in two pre-shrink sizes: 1/8 inch reducing to 1/16 inch, and 1/4 inch reducing to 1/8 inch, each cut to 4 inches in length. With a 2:1 shrink ratio and a dielectric strength of 600 volts per mil, the tubing provides reliable electrical insulation. Available in assorted colors and clear, it resists common fluids and solvents. Electricians, HVAC technicians, and pool service pros use this tubing for field repairs and panel wiring work.

This tubing kit is suited for residential and light commercial wiring tasks where quick, code-compliant insulation is needed. Typical applications include wire harness repair, splice insulation, terminal protection, and color-coded wire identification. The assorted sizing makes it practical for toolbox or van stock where multiple wire gauges are serviced in a single visit. Each package contains 5 pieces.

Key Features

• 2:1 shrink ratio covers two common wire gauge ranges in one kit
• 600 V/Mil dielectric strength provides solid electrical insulation
• Resists common fluids and solvents for durability in field conditions
• Assorted colors plus clear for visual wire identification
• Meets UL 224, CSA C22.2 No. 198.1, Mil-Dtl-23053/5 Class 1 and 2, AMS 3636 and 3637, and DEF STAN 59-79 Issue 3 Type 2A
• Continuous operating range from -55 degrees Celsius (-67 degrees Fahrenheit) to 135 degrees Celsius (275 degrees Fahrenheit)

Compatibility

Designed as a general-purpose heat shrink tubing assortment suitable for electrical wire insulation and protection across residential, commercial, and light industrial wiring applications.

Installation Notes

Installation is typically performed by licensed electricians or qualified HVAC and low-voltage technicians. De-energize all circuits and confirm zero voltage with a meter before applying tubing over splices or terminations. Slide tubing over the conductor before making the connection, then apply even heat using a heat gun — open flame is not recommended as it can scorch or unevenly shrink the tubing. Follow applicable NEC guidelines for insulation ratings and wire protection in the installation environment.