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The demand to provide efficient and effective bonding solutions in the automotive industry is increasing rapidly, with more focus on resilience, chemical resistance and high-level bonding solutions. As the industry continues to look for new ways to decrease displacement while maintaining power output, the need for alternatives to mechanical and glue bonding methods continues to grow.

tesa’s Reactive HAF thermosetting adhesive tapes are a proven solution to the industry’s greatest bonding challenges. With its resilience, chemical resistance, and high bonding strength, tesa® HAF has been especially designed for situations where new designs and ideas are creating compact lightweight designs that reduce emissions and fuel consumption. When combined with advanced materials like aluminium and carbon composites, tesa® HAF offers automotive OEMs a unique set of synergies to help them pursue greater levels of fuel efficiency and customer satisfaction.

The Proven Benefits of tesa® HAF
Until now, metal replacement in vehicles has typically focused on lower-load parts, but in order to incorporate these new lightweight materials into higher-load, harsher-environment applications, manufacturers need a more reliable and rugged method of structural bonding.

With an adhesive layer that contains nitrile rubber and a phenolic resin, tesa® Reactive HAF solutions function as thermosetting adhesive tape. When heated, a chemical reaction is started that creates a securely bonded system. Once fully cured, the heat activated film adhesive does not revert to its original state when re-heated.

This also offers high chemical resistance to engine oil and solvents and a high cohesiveness at frictional heat (up to 350°C). tesa HAF® bonds very well to steel and carbon fibre, which makes it an excellent solution for bonding carbon fibre linings to synchronizer rings, but the potential of this next-generation bonding solution is not limited to a vehicle’s transmission. Other proven applications include bonding carbon fibre to clutch discs, mounting sensor plates for gear control, and brake shims to brake pads.

Bonding of friction materials in clutches and transmissions
Where temperature variation, steady mechanical load and chemicals cause high stress, a reliable bond is needed.  tesa® HAF provides bonding strengths comparable to liquid high-performance adhesives and is five times stronger than conventional double-sided adhesive tape solutions. It also offers very good resistance to chemicals, oils and high temperatures, with a sealing function to prevent contamination by dust and humidity.

Bonding magnets to rotors
In electric motors, where changing loads apply, permanent magnets are often used to create a magnetic field.  tesa® HAF provides long-term stability at high load, high chemical and heat resistance, with a constant and even adhesive layer providing stability on small bonding surfaces.

Bonding of brake shims for disc brakes
tesa® HAF is used to reduce noise from the braking process by bonding brake shims to the brake pad backing plate. Offering high-temperature resistance, good damping properties and long-term stability at high load, tesa® HAF boasts excellent adhesion to rubber, metal and coated backing plates and is suitable for die-cutting.

Bonding of fabrics with LTR HAF
Heat Activated Films are used in the bonding of materials like leather and fabrics to dashboards to reduce the effect of Volatile Organic Compounds (VOC) in car interiors.  With low VOC and good adhesion to fabrics and heat-sensitive materials, tesa® HAF provides a flexible feel after application and a short curing time.

With products that offer all the elements required by OEMs to keep pace with high-speed automotive innovations, tesa is well placed to provide its customers with a full range of services. This includes product consultation, on-site support by a team of technical experts and customer-specific analyses and assessments under laboratory conditions at the company’s state-of-the-art Application Solution Centre in Hamburg.

tesa UK

tesa: a global adhesive tape manufacturer

tesa is one of the leading global brands of adhesive tape with more than 100 years’ experience selling 800 types of tape in more than 100 countries.

tesa: a global adhesive tape manufacturer

tesa is one of the leading global brands of adhesive tape with more than 100 years’ experience selling 800 types of tape in more than 100 countries.

We believe in investing for our future with five per cent of our global turnover going on R&D, which has led to 50 per cent of our sales being from products developed in the last five years. In total we have 350 people employed in tesa’s laboratories around the world filing an average of 70 patents a year.

We strongly believe in offering our customers as much support as possible, and this philosophy, branded tesacohesion®, is now a major contributing factor to winning new business.

tesacohesion®: what we offer the customer

It is our aim to be a sustainable resource to our customers’ businesses and to keep our customers because we deserve to.

We offer expert friendly advice, technical knowledge and expertise, a wide product offering, creative thinking and problem solving and a one-stop solution.

tesacohesion®is based on the 4Ps principle:

  • People: every day our technical sales team operates in the marketplace. When we need more technical support or research backup to solve a problem, we call in the group resources of tesa SE in Hamburg
  • Products: we supply more than 800 different tapes across 100 countries, each one developed for applications in key industry sectors and manufactured with the latest production technology to current globally recognised quality standards
  • Processes: we aim to understand our customers’ processes in depth so we can advise on how best to integrate our tape into your production and improve your processes. We can also help with preparation of standard operating procedures as well as value chain management
  • Performance: we will help you get the maximum performance from your choice: this could mean we need to install special tape-dispensing equipment. We’re also more than ready to provide on-site support and training for your staff and we can help you to develop standard operating procedures that will control and maintain quality

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