Heat-shrink tubing(or,commonly,heat shrink or heatshrink)is a shrinkable plastic tube uesd to insulate wires,

providing abrasion resistance and environmental protection for stranded and solid wire conductors,connections,

joints and terminals in electrical work.

Heat shrink sleeving is a particularly useful form of insulating sleeving. It can be bought in long lengths and in a

variety of diameters. Typically, when used, the required length is cut from the main length, and this is slipped

over the area that requires protection.

For the smallest heat shrink tubing, expanding it to double its size may reduce its thickness by up to 50%, which

is 0.1 mil. Multiple this by its withstanding voltage of 500V/mil, and the smallest heat-shrink tubing will still

withstand 50V.

Often confused with stretch film, heat shrink wrap consists of a wide variety of plastic materials designed to shrink

after heat is applied. Common plastics used to produce heat shrink wrap are: polyolefin, PVC, polyethylene, and

polypropylene. Heat shrink wrap is used as a packaging solution all around the world.

Some Heat shrinks are specially designed to be used in harsh environments and operate at even at -65°C to +260°C

and can also act as good protection against water and moisture. The ATUM, CGAT, C-Wrap, Rayseal, HTAT, and SCL

are some popular sleeves that can be used in harsh environments

Most plastics are not good conductors of heat. Making “foam” from plastic can also improve its properties as a thermal

insulator. Styrofoam, for example, is an excellent thermal insulator because it contains a great deal of air trapped by

the polystyrene.

Produced at a larger-than-needed size, M23053 adhesive lined heat shrink are heat-shrunk to a tight fit. Once shrunk,

the adhesive shrink tubing is a perfect and aesthetically-pleasing fit for its components. Polyolefin Adhesive Lined Heat 

Shrink is designed to encapsulate and protect other cables and cable bundles.