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Heat-shrinkable tubing offers optimum protection for wires and cables


FITCOTUBE® heat shrink tubing has a high level of resistance with a consistently high surface quality. They effectively protect wires and cables from mechanical, thermal and chemical influences.

Our heat-shrink tubing is available in different versions and also with international approvals and specifications, e.g. MIL or UL approval. They are especially suitable for the requirements of the automotive, environmental, medical and aviation industries.

In close cooperation with our customers from a wide range of industries, FITCOTUBE® heatshrink tubing from GREMCO is constantly being developed further and can therefore always be used individually. In addition, we offer application-oriented developments in all areas.

Individual printing
with logo and labelling

FITCOTUBE® with adhesive coating for moisture-proof insulation

Universal use in all areas of industry

Why Fitcotube® heat shrink tubing from Gremco?

Fitcotube® heat shrink tubing offers excellent UV light resistance and insulation properties thanks to our GREMCO quality culture, while maintaining the same high surface quality.
Due to innovative further development we offer a temperature resistance of up to + 260°C and for a short time up to + 400°C.

We also enable products subject to approval, such as UL/MIL/CSA, and supply halogen-free heat-shrink tubes on request.

With our wide range of unique Fitcotube® products we can meet the requirements of your company – please contact us!

Our heat shrink tubes – your advantage:

  • Heat resistant up to 400°C
  • Available with MIL, CSA or UL approvals
  • High surface quality thanks to UV resistance
  • Excellent insulation properties
  • Also available halogen-free

Product Overview Heat Shrink Tubing

We at GREMCO convince with our individual advice and our products at the highest quality standard. The special service enables us to offer customer-specific heat shrink tubing as well as the standard product portfolio.

We offer a wide range of shrink tubing and other shrink products such as shrink caps and are able to provide you with expert and professional advice on a wide variety of applications in the automotive industry, aviation, medical technology, environmental technology and general industry.

Convince yourself with our product overview and get the most out of your application.

Polyolefin thin-walled




Polyolefin kleberbeschichtet



(PTFE, FEP, PVDF/Kynar®)







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Cable protection for your company

Simple, uncomplicated and individual

Frequently asked questions (FAQ)

How does a heat shrink tube work?

Heat-shrinkable tubing, usually based on heat-resistant PTFE or PVDF, is drawn over the object to be protected and then heated with various processing devices. The heat applied shrinks the tubing into a tightly enclosing sleeve.

How far down the shrink tube shrinks depends on the shrinking rate, which is also called shrinking range or shrinking ratio. The usual shrinking rates are 2:1 to 4:1, although there are also other variations.

The material of a shrink tube is crosslinked after production. This step ensures that the molecule chains are connected to each other. Silanes or electron radiation can bring about this state. The respective plastic is extruded in the warm state and expanded to a desired diameter. This then leads to tension between the molecular chains. Subsequent cooling ensures that the diameter and the tensions are “frozen”, which dissolve under the influence of heat and the diameter of the shrink tube returns to its original size.

What is a heat shrink tube?

A heat shrinkable tube is made of plastic, which contracts when heated. Depending on the material, it is usually used to insulate something electrically and/or to protect something from damage (thermal or mechanical). There are countless variations of heat shrinkable tubing. For example, there are differences in the shrinking ratio (how much the tubing shrinks), the wall thickness (thin, medium, thick), the color, the approval (Mil, UL, CSA) and the material (polyolefin, fluoroplastics, elastomers, polyester, etc.) of the respective heat shrink tubing. Depending on the design, the shrink tubing then has specific properties.

How do I know which heat shrink tubing I need?

The right choice of heat shrink tubing is essential for the successful use of the product. There are a multitude of possible criteria that could be relevant for you, so that we have a four-digit repertoire of different products in the area of heat shrink tubing alone. The wall thickness, the material used, the shrinking temperature, the necessary approvals or the possibility of printing are only a few of the most important characteristics that must be clear when selecting the shrink tubing. This is why we at GREMCO are not just one of many shrink tubing manufacturers, but we have specially trained personnel who will provide you with professional support in the decision-making process. Our individual customer advisory service in the field of heat shrink tubing protects you from unnecessary mispurchases and guarantees you a smooth use of the optimal suitable plastic tubing.

What temperature does a heat shrink tube need?

The usual temperature to shrink a heat shrink tube is normally 200°C. However, it is often no problem to use a higher temperature, as the data sheet always indicates the minimum shrinking temperature. For example, if you use a hot air blow dryer as a processing device, you will reach temperatures around 400°C. Basically, the higher the temperature used, the faster the hose shrinks. However, be careful during storage, because even below the shrinking temperature a shrink tube can start to shrink (but then not completely). A normal hair dryer is not suitable for this. Other possible products for shrinking are heat guns, soldering irons and shrinking ovens/infrared ovens.

What do I need heat shrink tubing for?

Heat shrink tubes are used in various fields of application and industries. Thus, you have a wide range of possible applications, such as protection against moisture (shrink tubing with inner adhesive), protection against mechanical as well as thermal environmental influences, electrical insulation or protection against chemical substances. They can also be used for connecting cables or as corrosion protection.

Your contact person

Martina Korger

Inside Sales

We are here for you

Whether standard application, special design or complete system solutions – we are able to react quickly to your shrink tubing requests, to help with technical questions and to develop solution concepts. We look back on many years of experience in the field of heat shrink tubing and convince with expertise and the usual premium quality from Germany. With Fitcotube® we are constantly setting new standards through constant innovation in cooperation with our customers from the automotive, aviation, environmental and medical technology industries. In other industrial sectors, too, we have continuously built up professional competence over the past years and tailored our products to the needs of our customers. Our highly qualified employee Martina Korger looks forward to hearing from you!