Low-Pressure Overmoulding
Low-pressure overmoulding is an innovative encapsulation process positioned between traditional potting and injection moulding technologies.
The injection process involves placing, for example, a PCB assembly in a specially manufactured aluminium mould tool and completely surrounding (overmouldeding) it with a liquid compound that effectively forms the protection for the device. This process greatly simplifies the production of final packaging, offering a technically efficient and cost-effective method.
As a leading electronics manufacturing services provider, Liad Electronics offers a quality overmoulding solution for even the most complex projects. With our quality low-pressure overmoulding service, you can protect your PCB and cable assemblies with an unbreakable, shock-proof solution.
It is worth noting that low-pressure overmoulding is a complementary technology, it does not replace all potting applications and typically does not compete with traditional injection moulding.
How does it work?
The moulding compounds used are called ‘hot melts’ and are typically polyamide materials that are heated to 210°C, forming a low-viscosity material that can be injected at typically 50–200 psi into the mould cavity to encapsulate the electronics.
The injected material starts cooling as soon as it comes into contact with the mould cavity, thereby producing a short curing time cycle. The excellent adhesive properties form a watertight seal (IP67 rated) around the PCB without any chemical reaction, ensuring no toxic fumes are produced. It is the low-injection pressure that is paramount in preventing damage to the electronics. Unlike traditional potting applications, there is no need for a separate housing.
Why us?
We are experts in cable assembly. The unique combination of our friendly customer service team, state-of-the-art machinery and experienced electronics manufacturing engineers means we can deliver your project to an exceptional standard.
From simple high-volume projects to more complex low-volume projects, we manufacture to your needs — working with you every step of the way to produce and end product that meets your exact requirements.
