Application examples for leather bonds
Bonding leather is usually done using dispersion or solvent adhesives based on polyurethane or polychloroprene.
The latter are usually applied using the contact bonding method but can also be applied using the heat activation method. This method can also be used for 2-component polychloroprene or polyurethane adhesives with special polyisocyanates as a second component – especially when a particularly high adhesion to the sole material is required.
- Plastic adhesive based on nitrile rubberThis is ideal for bonding decorative foils in combination with leather. The highest strength is achieved after heat activation. One example is 3M Scotch-Weld 1099.
- Cyanoacrylate adhesives (instant adhesives)Cyanoacrylate adhesives are also suitable for bonding leather material to hard substrates such as wood, metal or solid plastics.
- Double-sided adhesive tapes with thin backing or adhesive films without backingSelf-adhesive tapes, film or foil materials etc. are particularly suitable for bonding or laminating flat leather material to hard substrates such as metal, wood and plastic. The component geometry hardly changes. Some products, such as the adhesive films from the 3M range, are only 0.025 to 0.13 millimeters thin. However, the performance characteristics of the adhesive formulations – strong/weak adhesive – differ on the two sides of the carrier material due to their chemical structure.
- AcrylicCharacteristics: excellent final adhesive strength with extremely high ageing, UV, temperature, and chemical resistance.
- Modified acrylatesCharacteristics: as with acrylate, but better adhesion to low-energy materials such as leather as well as better immediate adhesion.
- Synthetic rubber / rubber resin (double-sided adhesive tapes with thin backing)Characteristics: excellent instant adhesion combined with good shear strength on most materials with low-energy surfaces (PP, PE).
