What are the Types of Heat Resistant Tape?

Designed to endure extreme heat, heat resistant tapes retain their adhesive strength and structural integrity under thermal stress, making them essential in industries like electronics, construction, and automotive repair. But what classifies a tape as “heat resistant,” and what are the different types available? Let’s dive in.

What Makes a Tape Heat Resistant?

Heat resistant adhesive tape is engineered to withstand high temperatures without failure. This capability depends on its components: the adhesive, carrier (or backing), and sometimes a protective liner. For instance, a foil backing might tolerate 300°C, but if the adhesive can only handle 150°C, the tape will fail at that lower threshold.

Another key factor is short-term versus long-term heat resistance. A tape might handle higher temperatures for a few hours but degrade if exposed to the same conditions for days or weeks. Misjudging this can lead to premature failure, so it’s essential to match the tape to the specific demands of your project.

Types of Heat Resistant Tape

Here’s a closer look at the most common types of heat resistant adhesive tape and their applications:

1. Silicone Adhesive Tape
   Known for its flexibility and durability, silicone adhesive tape works well in high-temperature environments. It’s frequently used in aerospace and automotive industries to insulate wiring and seal components. Silicone can withstand temperatures up to 260°C, making it a reliable choice for demanding applications.
2. Kapton (Polyimide) Tape
   Kapton tape, made from polyimide film, is prized for its excellent thermal stability and electrical insulation properties. With a heat tolerance of up to 260°C, it’s ideal for use in challenging applications, such as aircraft manufacturing and transformer coil insulation.
3. Foil Adhesive Tape
   Featuring a metal backing (typically aluminium), foil tape is used in HVAC systems, duct sealing, and heat shielding. It reflects heat and resists flame, making it effective in temperatures up to 300°C, depending on the adhesive.
4. Glass Cloth Tape
   Reinforced with fibreglass, this tape offers exceptional strength and heat resistance. It’s often used for thermal insulation in electrical and industrial applications. Glass cloth tape can endure temperatures as high as 260°C. It also provides good sound insulation.
5. Polyester (PET) Film Tape
   PET film tape combines affordability with reliable heat resistance, tolerating temperatures up to 200°C. It’s commonly used for splicing, masking, and electrical insulation in environments requiring moderate thermal stability.
6. VHB Tape
   Very High Bond (VHB) tape can normally withstand a temperature range of-40°C to 90°C; however, certain versions are specially designed for heat resistance, enduring temperatures up to 150°C. It’s commonly used in automotive and industrial assembly for bonding panels and other components.
7. Acrylic Adhesive Tape
   Acrylic adhesive tape is valued for its versatility and resistance to both high temperatures and UV exposure. It’s widely used in automotive assembly, signage installation, and construction. It can withstand temperatures of up to 200°C.

Summary

Selecting the right heat resistant tape depends on the temperature requirements, duration of exposure, and specific application. Understanding the different types and their heat tolerance (long-term and short-term) helps ensure durability and reliability. From silicone adhesive to PET film tapes, each offers unique advantages for specific tasks, making it easier to find the perfect match for your needs.

At Conro Electronics, we’ll show you how to improve product reliability while increasing performance and lowering costs. Our team of technical support specialists will provide your company with dependable global supply, unrivalled efficiency, and superior technical support.

Feel free to contact us on 0208 953 1211 or send us an email to info@conro.com