What is Heat Shrink Tubing?
Heat shrink tubing is commonly referred to by several different
names, including: shrink wrap, shrink band, shrink tubing, heat
shrink sleeve, heat shrink sleeves, and heat shrinkable tubing.
Heat-shrinkable products can be found in many places around the
world, such as cars, trucks, vans, airplanes, military vehicles,
electronics, inside computers, spacecrafts, audio & video, telecommunications,
large and small ships, appliances, rail/transit (locomotives, monorails,
"people movers"), and many more industries.
Typical applications include: electrical insulation,
termination, splicing, cable bundling, color coding, strain relief,
wire marking, identification, wire bundling, mechanical protection,
corrosion protection, abrasion protection, strain relief, wire and
cable management and moisture and weather sealing.
is Shrink tubing manufactured?
Basically, a special thermoplastic compound (i.e.
plastic pellets) is extruded and made into a tube. The tube is then
exposed to high intensity radiation, and expanded to twice its original
diameter. This tubing is supplied in what's called the "expanded"
state. In some cases the expansion may be greater than 2:1
. Such heat shrink tubes are supplied in an "overexpanded" state.
Common types include 3:1
heat shrink , 4:1
heat shrink , and even 6:1 heat shrink. Adhesive
lined heat shrink (also known as dual wall heat shrink tubing)
is also readily available.
When the heat shrink tube is supplied in an expanded state, it
has what is called "memory". This means that when it is exposed
to high heat (commonly referred to as the shrink temperature or
activation temperature), it will relax back to its original diameter.
This is called the recovered state. One must be careful when referring
to the diameter, and make sure to specify expanded diameter or recovered
diameter. We make it easy for you: Unless stated otherwise, the
diameter listed on this site is always Expanded diameter. Also,
diameter is always measured as a tube, not flat width.
There are several ways to shrink heat shrink tubing.
Contrary to popular belief: a hair dryer will not work. A cigarette
lighter will work, but you run the risk of charring the tubing.
In most cases a hot air oven or a heat shrink gun (such as Leister
or Master or our VT-1100 )
is the ideal heat source. In special cases like PTFE
(Teflon®) heat shrink
tubing, a blow torch may be required.
types of heat shrinkable tubing are available?
We offer all varieties of heat shrink tubing, such
as: polyolefin, fluoropolymer (PVC,
polyolefin (Neoprene®) and highly
flexible elastomer (Viton®) heat-shrinkable
tubing. Our tubing conforms to all major commercial and military
specifications including AMS-DTL-23053
(formerly known as MIL-I-23053), Underwriters' Laboratory (UL) VW-1
flame test, and CSA.
Since our offering is so diverse, regardless of your
application, whether it's low temperature (-75C), high temperature
(260C), extreme weather or chemicals, we have the solution for you.
Need extreme chemical resistance ? Perhaps our PTFE
(Teflon), or Viton
will be right for you. Do you need outstanding low temperature flexibility?
heat shrink. Do you need to bundle cables in a plenum approved
jacketing material? Kynar
resin is approved for use (under NFPA-70A) in plenum
Materials are available in thin wall, medium wall
or heavy wall configurations, with melt-and-flow adhesives, weather
proofing encapsulants, and many different colors, including Yellow/Green
stripes for ground identification, and clear PVC tubing (heat
shrink and non-shrink).
While we normally don't sell heat shrink tubing on a "by the
foot" basis, if you require small quantities for sampling or
home projects, we will be happy to work with you or refer you to
one of our partners .
Custom cutting and printing services (thermal
transfer and hot stamp marking) are also available upon request.
If you can't find what you're looking for here, call us and we will
find it for you.
with 2 Air Speeds, and a temp. control dial for range of 250°F
- Pocket sized cordless refillable butane heat source. Great alternative
to electric heat guns. Waterproof piezo electronic ignition, safety
lock trigger, and a reflector shield for use with heat shrink.