- 100% solids
- Instantaneous adhesion, only after applying little pressure
- Quick and easy to apply self adhesive products
- Large variety of adhesion properties
How to apply hot melt adhesives
Hot-melt adhesives are applied in a hot molten state and must flow on the substrate to ensure a good wetting and adhesion.
Measuring physical properties such as viscosity, softening point or modulus is relevant and important for characterizing PSA adhesives. Therefore properties can be set to create the right behavior of the self adhesive end product.
By means of the rheological properties it is possible to predict the performance of a PSA, while adhesion properties such as tack, peel strength and holding power are control tests. PSA’s are a complex adhesive where many parameters are of importance.
Adhesion tests on materials
Adhesion properties depend on experimental parameters such as temperature, pressure, rate of debonding and, of course, nature of the adhesive and substrate as well.
Standard test methods
Some associatons such as the ASTM (American Society of Testing Materials) or FINAT (European Association of the Self-Adhesive, Labeling Industry) or the British PSTC (Pressure sensitive tape council). Normalized tests are well defined and defined standard test methods.