New hot-melt adhesives can resist both heat and water.
Henkel has introduced new molding products under the Macromelt brand for electrical applications. These products can reportedly offer reliable, resilient and resistant solutions for even the toughest conditions.
Henkel invented Macromelt molding; as a result, the company was responsible for the first case in which a cable assembly was encapsulation-molded in an engine compartment of an automobile—manufactured by Citroën of France—almost a quarter of a century ago.
Since that time, molding products have continually improved, with ongoing adaptation to the specific conditions prevailing in the user industries. In addition to performance, increasing importance is being attached to the sustainability of Henkel’s products; these new hot melts comprise up to 80% renewable raw materials.
Macromelt Q 5361 is self-extinguishing and reportedly extremely flame resistant. Consequently, it has been assigned the best inflammability class, VO, qualifying it for many applications, including those where heat is a major factor. The hot melt extinguishes itself after a maximum of 10 seconds, with no burning drops and a maximum post-fire glow time of 30 seconds. Applications include the sealing of cable assemblies/harnesses in vehicles, and in solar and wind power generators.