Also referred to as heat shrink sleeving, heat shrink tubing is a uniquely composed type of casing that is used to repair and preserve a range of different wiring harnesses and electrical components. Here are three elements to reflect on as you begin selecting the best heat shrink tubing product for your application.
Evaluating the atmosphere that the tubing will be operating in is a fundamental part of knowing what tube size and material to use. Consider whether the tubing will be near any oils, fluids, or chemicals, or if it will be impacted by abrasion on a regular basis. You’ll also want to consider whether the tubing is going to be located indoors or outdoors. Tubing that is situated outside might be exposed to ultraviolet rays, whereas tubing that’s located on the ground or underground may come into contact with bacteria or fungus. Depending on the area, you’ll need to select a product that can endure any unavoidable environmental factors.
Heat shrink tubing that’s going to serve as a container or an insulator for electrical wires will most likely have to meet to specific electrical standards. Some of the common electrical requirements are regarding resistance to flame, material specifications, and dielectric capacity. Be sure you are aware of all the relevant electrical requirements prior to making a purchase.
When it comes to picking out the right heat shrink tubing material, there are a few options to evaluate. For example, PTFE (polytetrafluoroethylene) is known for its ability to withstand high levels of heat. As one of the most utilized heat shrink materials, PTFE tubing can handle temperatures up to 135 Celsius and 275 degrees Fahrenheit. Another heat tubing material available is PVC, which is generally more affordable in comparison to PTFE. However, PVC doesn’t have the ability to withstand the same heat levels. But if you are working in an environment containing a high temperature of 105 degrees Celsius or 221 Fahrenheit, PVC may be a more cost-effective option for your application.
A third material option is adhesive-lined heat shrink tubing. As a highly versatile product, this type of heat tubing features an adhesive interior lining that acts as an environmental cover to shield its contents from water and other debris.
Regardless of whether you end up purchasing heat shrink PTFE tubing, PVC tubing, or adhesive-lined tubing, taking these three considerations into account will help you make the best decision for your project.