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2025/06/03

Low Pressure Molding (LPM)

Q1:What is Low Pressure Molding (LPM)?

Low Pressure Molding (LPM) is an advanced encapsulation process where hot-melt materials are injected at low pressure into molds to protect sensitive electronic components. It offers short cycle times, high waterproofing, and eco-friendly materials, making it an ideal replacement for traditional potting.

 

Q2:What are the advantages of LPM compared to traditional potting?

  • LPM provides:

  • Fast cycle times (10–60 seconds)

  • Lower material usage and cost

  • Gentle pressure that won’t damage components

  • High waterproof protection (up to IPX7)

  • RoHS-compliant, low VOC emissions

 

Q3:What applications are suitable for LPM?

  • Typical applications include:

  • Automotive wire harnesses and waterproof connectors

  • Industrial sensors and outdoor electronics

  • LED modules and PCB-to-wire assemblies

  • USB connectors, push buttons, and consumer electronics

 

Q4:Can LPM achieve waterproof sealing?

Yes, LPM provides up to IPX7 waterproof sealing, effectively protecting against moisture and dust. The hot-melt materials bond well with plastic connectors to ensure a tight seal.

 

Q5:Is LPM environmentally friendly?

Absolutely. LPM uses recyclable hot-melt polyamides that comply with RoHS and TS10204 standards. It produces minimal VOC emissions, supporting sustainable and eco-friendly production.

 

Q6:Does LPM require special equipment?

LPM typically uses aluminum molds and dedicated low-pressure injection machines. Compared to traditional potting or high-pressure molding, the equipment is simpler and more cost-effective.

 

Q7:Can LPM be customized for different product shapes or sizes?

Yes, LPM is highly customizable through mold design and supports a wide variety of product shapes—from simple joints to complex multi-cable assemblies.

 

Contact Us  for Your Low-Pressure Molding Needs

Whatever electronic component protection your product requires, YACENTER ELECTRIC CO., LTD can provide the most suitable low-pressure molding solution. Contact us now to learn more and achieve a win-win partnership!

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