Hot Melt adhesives are solvent-free solid materials that melt at temperatures between 80 ° C and 180 ° C and are applied to various substrates, such as adhesive tapes.
After melting they must be spread and in this phase, to avoid clogging due to foreign particles present, self-cleaning systems are used, i.e. automatic filters that do not need to change the filter element.
Once cooled, they ensure perfect cohesion of the adhesive on the substrate.
For many years Mahle, now Filtration Group, designs and builds automatic filters for this sector and many major manufacturers use them on their lines.