Technomelt/Macromelt Process

Plastic REPLACES MOULDED Parts


Hotmelts for waterproofing connectors have been state of the art technology for many years. However, Macromelt molding is more than a waterproofing adhesive bonding method. The Macromelt moulding adhesive not only prevents the ingress of moisture into the connector. It also provides the connector with mechanical strain-relief thus eliminating other plastic parts, clips or clamps previously required.



The Macromelt moulding polyamide-based hot-melt adhesives have a melting range of 120°C to 180°C and are low viscosity and present good adhesion to many plastics such as polyethylene, polyvinyl chloride and polyamide.



The process is related to injection moulding where heated hot-melt adhesive is injected into a tool. The thin molten mass will flow around filigree components at low pressure unlike the high pressure required for conventional plastic injection moulding. The adhesive will flows into the narrowest spaces at a pressure between 5 and 10 bar. 



The low pressure makes the entire process economical, as both the machine and the tool can be designed for these low loads, allowing the use of inexpensive aluminium tooling.

Hotmelt protects against
               water and mechanical impairment....

System Components

Application Examples