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Heat-shrink 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.

GREMCO’s FITCOTUBE® heat-shrink tubing is constantly being developed in close cooperation with our customers from a wide variety of industries and, therefore, can always be implemented individually. Moreover, 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?

Thanks to our GREMCO quality culture, FITCOTUBE® heat-shrink tubing offers high UV resistance and excellent insulation properties with a consistently high surface quality.

Through innovative development, we offer a temperature resistance of up to 260°C and, for short intervals, even up to 400°C. We also offer the possibility of approval-specific products (e.g. UL, MIL, CSA) and supply halogen-free, heat-shrink tubes upon request.

With our wide range of unique FITCOTUBE® products, we can meet the requirements of your company – speak to us today!

Our heat-shrink tubes – your advantages:

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

Product Overview – Heat-Shrink Tubing

At GREMCO, we stand out through our individualized advice and the top quality standard of our products.

Our special service enables us to offer both customer-specific heat-shrink tubing and the customary product portfolio. We provide a wide range of heat-shrink tubing and additional shrink products, such as shrink caps, and are in a position to give you expert and professional advice on a wide variety of applications in the automotive sector, aviation, medical technology, environmental engineering and general industry.

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

Polyolefin tubing




Polyolefin kleberbeschichtet



(PTFE, FEP, PVDF/Kynar®)

FEP insulating tubing






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Cable protection for your company

Simple, uncomplicated and customized

Frequently asked questions (FAQ)

How does a heat-shrink tube work?

Heat-shrink 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 from 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 molecular 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 leads to tension between the molecular chains, and subsequent cooling then ensures that the diameter and the tensions are “frozen.” These 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-shrink tube is made of plastic which contracts when heated. Depending on the material, it is usually used to electrically insulate something and/or to protect something from damage (thermal or mechanical). There are countless variations of heat-shrink 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 exhibits 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. Since there are a multitude of possible criteria that could be relevant for you, we have a four-figure 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 simply one of many shrink tubing manufacturers – we have specially trained personnel who will provide you with professional support in the decision-making process. Our individualized customer consultation service in the field of heat-shrink tubing helps you to avoid unnecessary incorrect purchases and ensures the smooth employment of the most suitable plastic tubing.

What temperature does a heat-shrink tube need?

The usual temperature to shrink a heat-shrink tube is around 200°C. However, it is often not a problem to use a higher temperature, since 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 of around 400°C. In principal, the higher the temperature used, the faster the hose shrinks. However, be careful when storing because, even below the shrinking temperature, a shrink tube can begin to shrink (although not completely). A normal hairdryer is not suitable for this. Other possible products for shrinking are heat guns, soldering irons and shrinking/infrared ovens.

What do I need heat-shrink tubing for?

Heat-shrink tubes are used in various fields of application and industries. Therefore, 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 factors, electrical insulation or protection against chemical substances. They can also be used for connecting cables or as corrosion protection.

Your FITCOTUBE® expert

Martina Korger

Inside Sales

We are here for you

Whether standard applications, special designs or complete system solutions – we are able to respond quickly to your shrink tube enquiries, help with technical questions and develop solution concepts. We look back on many years of experience in the field of heat-shrink tubing, and we excel owing to our expertise and Germany’s customary premium quality. With FITCOTUBE®, we are constantly setting new standards through continuous innovation in cooperation with our customers from the automotive, aviation, environmental and medical engineering industries. In recent years, we have also been continuously building up professional competence in other industrial sectors and tailoring our products to the needs of our customers. Our highly qualified employee Martina Korger looks forward to hearing from you.