Adhesive types

22 January, 2020 By
Adhesive types
CMC Klebetechnik GmbH

Adhesive types

Acrylic adhesive

are synthetically produced adhesives with many positive properties. Acrylic adhesives are resistant to aging, usually have very high adhesive strength, and can be used from -50°C to 180°C. They are characterized by high aging resistance, good chemical resistance and, if desired, high shear strength.

They are suitable for indoor and outdoor bonding.

  • very good aging and UV resistance

  • good immediate bond strength, outstanding final bond strength

  • high temperature resistance (-50°C to 180°C)

  • very good chemical and solvent resistance

Polysiloxane adhesive

can be used in an extremely wide temperature range (approx. -100°C to 350°C). They are characterized by their redetachability even after high temperature exposure. Polysiloxane adhesives adhere even to difficult substrates and even to silicone. They are extremely resistant to chemicals and weathering, achieve good shear strength and are very durable/ extremely resistant to aging.

  • low immediate adhesion, but this increases considerably within 72 hours

  • very good internal strength (residue-free re-stripping)

  • Adheres even to very low-energy surfaces

  • extremely good chemical resistance

  • outstanding temperature resistance between -60°C and approx. 300°C

Rubber adhesive

are adhesives made from natural or synthetic resins. Their main features are usually high instant adhesion and good tack on a wide range of surfaces. These adhesives can be used from -20°C up to 155°C, and even higher for short periods (paint drying). However, adhesives in this category have limited aging resistance.

They are particularly suitable indoors for general tasks.

  • Very good immediate adhesion

  • good adhesion even on repellent surfaces such as PP or PE

  • Restrictions regarding aging and chemical resistance

  • Can also be set removable

  • Temperature range from -20°C to 155°C

Hot seal adhesive

offer the highest adhesive strength. The adhesive is melted by heating and bonds under pressure and temperature. A very high load-bearing bond is obtained, which is almost invisible when the adhesive is set to transparent. The melting temperature can be adjusted.

Hot melt adhesive

are 100% systems. This means that no solvent needs to be used to apply the adhesive. Rather, the adhesive resin is melted and solidifies when applied to the film. Post-curing can also be used to achieve high temperature resistant settings. The adhesive tape is self-adhesive at room temperature similar to a rubber or acrylic adhesive.

Liner

Depending on the adhesive tape or application, different adhesive-repellent films and papers are used. In the case of double-sided adhesive tapes with only one liner, the two sides have different levels of repellency to ensure reliable processing.