Hot melt molding: Molding of pressure-­sensitive components

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HECHT + DIEPER realized a tight encapsulation of an antenna inductor in a plastic backing plate by using the hot melt adhesive Macromelt. Hot melt molding based on polyamide offers a cheap alternative to traditional polyurethane or epoxy potting compounds in this example.

Unlike the classic plastic injection molding, processing of this hot melt happens at a significantly lower injection pressure. The low injection pressure does have the advantage that electronic components can be directly over-molded without damaging them.


Hot melt adhesives are processed at temperatures between 180°C and 240°C. They can be exposed to temperatures between -40°C to 140°C. The adhesion properties on PA, PBT or other polar plastics are very good.

Thermal casting materials of polyamides are also advantageous from an ecological point of view; since they are produced from renewable raw materials, no chemical reactions take place during processing and no solvents are released.

A selection our realized products

Electronics industry Tight encapsulation of an antenna inductor
Hot melt adhesive macromelt injection technology allows the encapsulation of pressure sensitive parts.

From idea to production - One-stop

A prerequisite for short development phases and high product quality

The benefits of collaboration with HECHT + DIEPER

HECHT + DIEPER is your expert in injection moulding of plastics



During development, our customers benefit from our many years of expert knowledge in the area of ​​construction, our own tool design, as well as our competence in production.



Together - as specialists, we know that only the joint development of components is the best prerequisite for the optimal functionality of your product.



Since more than over 40 years we have been developing and producing technically challenging components of the highest precision for various industries.



In order to be able to deliver quickly, we believe in long standing and reliable cooperation with local logistics partners.



Regular optimization in development, toolmaking and production is a continuous process for us and thus the foundation for high efficiency and customer satisfaction.



Everything is local. We develop and produce plastic components - from the idea to production - one-stop. Our service enables short communication channels.


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If we have aroused your interest, we look forward to your inquiries.