You must heat your tube evenly and only move forward when it is retracted, always taking care not to create air bubbles. You risk ending up with air bubbles or the sheath will compensate by twisting and/or creating beads. This is because if you create a closed portion, air can no longer escape as you progress.
If you started in the middle, you should not stop and start again from one end. For example, if you started at one end, you have no choice but to continue to the other end. However, you must never close the sheath before it is retracted. If it is long, you can start in the middle, or at some other point that is not an end. If your sheath is short, you can start at one end and then work your way to the other end. You must choose a starting point to heat your sheath and then follow the tube, but always towards one end, in order to provide an outlet for the air. You will not achieve the desired insulation, and you risk damaging its contents. If you heat it at too high a temperature, you will weaken it.
If you don’t heat the heat-sleeve sufficiently, it won’t shrink as much as it should. Choose a heat gun that has an adjustment, with a wide temperature range, if you have different kinds of sheaths to handle. The maximum temperature they can withstand is indicated on their instructions. You don’t need the same heat for a tube that protects wires in an electrical circuit and a large tube that encloses cables, for example for shrink wrapping a construction site.Ĭheck the heat you need according to your sheathing. The choice of your heat gun is crucial to the success of your operation. Automatic shrink wrap machine is a great tool for wrapping and sealing products through heat shrink film.
#HEAT SHRINK WRAP HOW TO#
How to heat and shape heat-shrink tubing Choice of heat gun POF Shrink Film Find many great new & used options and get the best deals for 3 Pack Safecut 12' x 2000 Premium Foodservice Film Food Wrap with Slide Cutter at the best online prices at eBay Free shipping for many. protective coating for a rod or other cylindrical object, etc.marking on a cylindrical object for easy identification (with a coloured tube).assembly of two large ducts (cylindrical bars).Here are some of the uses of heat-shrink tubing: It also allows you to mark objects or distinguish wires from each other, which is why it is very popular with electricians. The heat-shrink tubing protects its contents from abrasion, water, chemicals, etc. It is also necessary to take into account the reduction in the length of the tube after being heated you can expect a 5-7% difference. The heat-shrink tubing is a tube made of a flexible plastic with special properties: when heated, it shrinks, reducing the diameter of the sheath and tightening the contents of the tube.ĭepending on how you use it, the shrinkage factor is between 2 and 6 times the original size. Once the shrink tubing is in place, it is heated with a heat gun that makes it wrap tightly and be set in place. It is about marking or protecting a more or less large object. The heat-shrink tubing uses the principle of shrink wrapping.
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