Insulating with Polyolefin Tubing

Polyolefin tubing is an all purpose insulation used in electrical wires and cables. It is known for its high durability and thermal stability, and manufactured using an irradiated type of plastic.

Polyolefin is a type of polymer that is manufactured using olefins. Butylenes, propylene and ethylene are some of the most common types of olefins used in manufacturing polyolefin. They are known for their remarkable chemical resistant properties and adhesive bonding capabilities when they are treated with heat.

It comes in heat shrink as well as non-heat shrink variations, but generally heat shrink is more commonly used due to certain advantages it has over non-heat shrink.


When polyolefin tubing is being installed, it is put onto the surface and then heat is applied, generally using a gas torch, to shrink it to the required size. If excess heat is applied, it will make the tubing tighter than required. However, it can be loosened with a silicone lubricant and readjusted accordingly. The silicone lubricant does not compromise the integrity of the polyolefin in anyway.

The applications and benefits of insulating with polyolefin include:

Safety against fire hazards

Different insulation materials pose fire hazards, especially in aero planes. However, polyolefin tubing ensures prevention from any fire. It is highly flame retardant and provides an important safety measure in airplanes, as well as in different military applications.


Polyolefin provides a high-degree of conductive flexible tubing and can be used to insulate long cables. It can adjust according to the wiring contractions and expansions. Polyolefin tubing can also be used to cover protruding parts and irregular sized components.

Prevention from Electric leaks

Polyolefin tubing prevents from electric leaks, which is an important safety measure for professionals and electrical operators. In case of irregular current flow, the wires can get overheated and burn the insulation. Any cracks or breakage can also cause leakage. But polyolefin tubing provides excellent resistance from any electrical shocks and heat, which prevents any electric leak from happening.

Multiple Ratios

The Polyolefin tubing can be used in multiple ratios that include 4:1, 3:1 and 2:1. The ratios are achieved by applying different amount of heat levels when applying heat to shrink the tubing. Because of this, polyolefin tubing has extensive use in several industries such as electronics, automotive and aerospace industries.

To learn more about polyolefin tubing, visit our website or get in touch with us at 610-692-2576. We offer different types polyolefin tubing along with high-quality PTFE and FEP tubing solutions.


6 Reasons To Choose Teflon Hoses

The PTFE Tubing (Polytetrafluoroethylene tubing) is a widely-used option for several industrial and commercial products all over the world.

Greater heat resistance, excellent dielectric stability and self-lubricating properties have made fluoropolymers the most sought-after tubing products today.

With their non-stick nature, coupled with a low coefficient of friction, these tubes are an ideal material for high-temperature applications. Their chemical inertness and unrestricted flow without sedimentation are added benefits.

Stainless steel smooth bore and/or convoluted PTFE or Teflon hoses are frequently used across industrial and manufacturing industries. The reason for this is that they are safe to work with, and distribute gases and liquids efficiently.

Here are 6 reasons why you should be using Teflon hoses in your industry:

1. They are stronger and more durable.

The industrial hoses made of rubber or thermoplastic are not strong enough, and hence, break down quickly. For processes involving harsh chemical conditions—particularly in the pharmaceutical, chemical processing, food processing and automotive industries—a much stronger and more durable hose such as a Teflon hose is an essential requisite. They even work for long periods of time under high pressure.

2. They are resistant to extreme temperatures.

Extreme temperatures—hot or cold—which would otherwise destroy other materials, fail to have any adverse effects on PTFE tubes.

3. They can withstand almost all chemicals.

With the exception of certain molten alkali metals and halogenated compounds, Teflon tubing is able to resist almost all the chemicals it is exposed to during a manufacturing process.

4. They can resist moisture and humidity.

Prolonged damp conditions do not corrode or damage Teflon hoses. Also, since they are chemically unreactive, their sustained contact with chemicals does not alter the odor, color or taste of the final product. This useful property makes Teflon tubes an apt choice in the food & beverages industry.

5. They provide security against fire.

PTFE tubing or hoses are scientifically proven safe against fire. This explains why they are so commonly used in pressure gauge supply lines and fire extinguisher kits.

6. They are flexible.

Stainless Steel Braided Teflon tubing allow for effortless motion and vibration without hampering its durability. Depending on whether it is smooth-bore, or convoluted, the PTFE tube can be bent or flexed as required. PTFE Tubing has the greatest Flex life out of any Fluoropolymer Tubing.

Tef-Cap Industries is a proud manufacturer and distributor of a wide variety of top-notch quality heat shrinkable PTFE tubing products. Contact us today and we will make sure you get exactly the Teflon hose your application needs!

All You Need To Know About Heat Shrinkable Probe Covers

Regardless of whether you are an engineer or an electrician, you must already be familiar with the term “heat shrink tubing”. In fact, there is also a high possibility that you’ve come in contact with them and know how they work.

Initially, heat shrinkable tubes were used to safeguard electrical wires only. But, over time, their efficacy extended to a wide spectrum of industrial and commercial applications. A number of industries now rely on PFA tubing to prevent fire and lessen energy dissipation, and in the process, cut their manufacturing costs.

Read on if you are interested in getting to know more about the benefits of heat shrink tubing.

1. They can resist high temperatures.

Heat shrink tubes can withstand extreme temperatures and hence, can work under harsh chemical conditions which can melt other lesser materials. With a melting point as high 320°C and a freezing point as low as –268.15°C, these tubes are able towithstandall freezing cold and blistering hot chemical environments.

2. They can withstand abrasion.

Fortunately, heat shrink tubes are added to industrial products so as to enhance their resistance to accidental damages and physical abuse.

3. Their end caps protect the product.

Assuming that you are connected to the field of science in one way or another, it’s understood that cutting a wire to resize or rework its shape according to the “electrical need” is something you’ve done time and time again.

This goes without saying that if you fail to insulate the wire properly, the cut can cause trouble.

Thankfully, with encapsulating heat shrink tubes, you need no longer worry about overheating or shorting of circuits. Considering safety is your topmost priority, heat shrink tubing offers high performance with utmost protection.

Heat Shrinkable FEP & PFA Probe Covers

Probe covers serve as an end cap plug for the expensive glass or metallic probes used in high-temperature or corrosive processes.

Since these parts are placed in hard-to-access positions in a circuit, and reside in a gas or liquid stream, encapsulating them with heat-shrinkable FEP or PFA covers increases their longevity.

This is mainly because of the chemical inertness and excellent lubricating, and high electrical and thermal resistance properties that these fluoropolymer tubes have to offer.

The FEP and PFA probe covers engineered at Tef-Cap Industries act as protective shields  for a number of industrial products such as probes, thermocouples, resistance temperature detectors (RTDs), thermometers and assorted sensors. In corrosive environments, these probe covers create an impenetrable barrier between the caustic chemicals and expensive sensing devices.

Interested in getting your instruments encapsulated by Tef-Cap’s heat shrinkable probe covers? Get in touch with us now: 610-692-2576.

The Advantages And Applications Of Heat Shrink Tubes

Heat shrink tubing is a unique product which has completely revamped the industry with its extensive array of applications. These dual shrink tubes are primarily used to insulate different type of wires and to create an airtight environment.

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The materials used to construct heat shrink tubes and dual shrink tubes provide an abrasion resistant environment which can be used to protect standard and solid wire constructors. Heat shrink tubing is generally made using nylon or polyolefin, both of these materials can shrink in a radial manner.

These heat shrink tubes are manufactured using a variety of different materials and the exact composition of each tube depends on its intended application or purpose. Heat shrink tubes provide a variety of different benefits which is exactly why they have become so popular in the market today, some of the most profound benefits of heat shrink tubes are mentioned below.

  • Provides an air tight seal
  • Low installation costs
  • Cost effective price
  • Shrinking can be performed in three different ratios
  • Can be used to cover any type of sensitive material

Applications Of Heat Shrinking Tubes

Heat shrinking tubes have an extensive array of different applications in a variety of industries including automotive, electronics, aerospace and military industries. To help people understand

the vast applications of heat shrinking tubes we at TEF CAP have articulated a list of the mostpopular applications of heat shrinking tubes.

  1. To provide a sealant for different components

This is the most common application of heat shrinking tubes as they provide an airtight seal which is moisture resistant. It is used to protect components such as wires or other connections form moisture.

  1. Helps in identifying wires

Another common application of heat shrinking tubes is its ability to color code wires. These days they are used when installing electrical system in order to help identify wires in the future.

  1. Insulation from heat and chemicals

This is the most common application of heat shrinking tubes as they form an airtight seal which provides optimum insulation from heat and chemicals.

  1. To protect wires from strain damage

Many electrical connections are strained due to insufficient length and instead of increasing the wires length, heat shrink tubing can be used to protect the wires.

  1. Soldering

Now days instead of using soldering materials, professionals have started using heat shrink teflons in order to mechanically bond together different components.

To learn more about the profound benefits or applications of heat shrink tubes, simply call 610-692-2576 to get in touch with a representative from Tef- Cap.

A Short Guide To Applying Heat Shrink Tubing

Heat shrink tubes may be made from a range of thermoplastics ranging from PVC, polyolefin, PTFE or FEP. Apart from these materials, some heat shrink tubes may also include a special lining of adhesive to bond to the underlying cables or wires and create a stronger bond. Adhesives may be used for applications that involve underwater exposure for wires and cables.

However, the most important part of using heat shrink tubes effectively is the application process.

When applied the right way, it can protect wires and cables against abrasion, weather and chemical exposure. On the other hand, it may also be used to color code wires for ease of identification as well as for strain relief.

Here are the steps involved in the application process of heat shrink tubing:

Select The Right Size

The first and perhaps the most important step is to select the right size for your specific project. To make sure that you get the right fit, ensure that the tubing’s diameter after shrinking is smaller compared to the diameter of the area you are going to insulate.

The tubing’s diameter before shrinking also needs to be large enough to fit over the area that needs insulation.

Cutting The Heat Shrink Tubing

The next step is to cut the heat shrink tube and ensure that there’s at least ¼” of the space left behind for any existing insulation. Don’t forget that the tubing also shrinks in length, at least 5% when heated.

Sliding The Heat Shrink Tube On Target Area

Slide over the heat shrink tube on the area that needs to be sealed. If you plan to splice it, slide it over the center of the splice and leave out equal length on both sides.

Check Temperature Specifications

Before you begin the heating process, don’t forget to check the recommended heat settings. You can use a commercial heat gun for this process. Don’t forget that using open flames or uncontrolled heat can lead to damage, poor insulation and air bubbles within the seal.

If you are covering a longer area, start off at one point and gradually make your way to the other. Keep rotating the wire or cable to apply heat evenly.

Allow It To Cool Down

Letting the wire cool down is as important to ensure a firm fit. Once the tubing shrinks, remove the heat source immediately and wait for the seal to cool down before checking it. Always avoid overheating.

Wondering where you can get high quality Fluoropolymer tubing or high temperature heat shrink tubing variants? Look no further. We have a wide variety of heat shrink tubing options for various industrial applications. Get in touch with us to learn more.

Industries That Rely on PTFE Tubing

PTFE tubing conjures a variety of images in one’s minds; such as air conditioners and other more complicated HVAC units. This is because PTFE tubing has the image of being able to withstand high temperatures.

Furthermore, they are also used in industries that make use of chemicals, as these tubes do not undergo wear and tear when exposed to harsh chemicals. Tough tubing material allows it to be used in labs.

Some of the properties of PTFE tubing include a commendable tolerance to precision, a high level of resistance to temperature and pressure and flawless lubrication properties.

Because of its range of properties and versatility, PTFE tubing is known and used for a variety of purposes in a wide range of industries.

Let’s explore some of the industries that make use of this highly durable and multi-purpose material which makes up many different forms of tubing:

Medical Industry

The medical industry is a great market for PTFE tubing because of its biocompatibility properties.

Fluoropolymers such as PTFE have evolved over time to meet the complex demands for new procedures and products.

PTFEs are the single most prevalent material that has replaced plastic over the years when it comes to medical applications.

This is primarily because of certain properties that are unique to these fluoropolymers and meet the criteria for medical applications like:

  • Chemical inertness
  • A wide temperature range
  • Sterilization
  • Lubricity
  • Di-electric properties
  • High-purity

All these properties make PTFE tubing a perfect fit for medical usage for example in the making of IV tubes and lining of the catheter’s IDs.

Automotive Industry

The moving parts of an engine can heat up due to continuous movement and friction.

If the amount of heat generated is not controlled, it might end up causing a lot of internal damage.

For this purpose, a material that can withstand high temperature and pressure is needed. PTFE tubing is an ideal choice for the making of wire harness insulation. This is because this fluoropolymer has high dielectric strength.

Also, PTFE is known to be very lubricious, which makes it apt for being used in providing lubrication to other fluid tubing lines and fuel hoses.

Not only can PTFE stand high temperatures, it can also adjust to the other extremity of very low temperatures and are hence used on the cooling mechanism of engines.

Fiber Optics

More and more industries have increased their reliance on the accuracy and precision of communication via fiber optics. The increasing demand for fiber optics across a range of industries has made the use of PTFE tubing even more common.

PTFE tubing, very conveniently slides over fiber optic cables without causing even minimal damage to the highly sensitive fibers inside the cable.

It is very important to keep these delicate fibers intact as they are the most essential part in effective transmission of signals to deliver the message.

The fact that PTFE is chemically inert also eliminates the risk of it reacting with other materials in the surroundings. It is also malleable and can be molded into different shapes and formed into multi-lumens.

Tef-Cap specializes in a wide variety of Metric PTFE tubing of various shapes and sizes to suit the particular needs of different industries. With its most prominent characteristic of being able to withstand extremities in temperature, it is widely used for chemical manufacturing, medical purposes to aerospace needs.

Our associates are available to guide you if you need to make any buying decisions. Call or email us for further assistance.