Custom LSR Overmolded PCB Silicone Waterproof Cover | Silicone Over FPC Electronic Protection Component
Item specifics
- Product Type
- PCB Silicone Protective Cover
- Silicone Material
- Liquid Silicone Rubber (LSR)
- Substrate
- PCB / FPC Circuit Board
- Process
- LSR Injection Molding / Silicone Overmolding
- Function
- Waterproof Protection / Shock Absorption
- Structure
- Integrated Silicone Overmolding
- Application
- Electronic Module / Control Board
- Waterproof Rating
- IP65 / IP67 / IP68
- Service
- OEM / ODM Custom Manufacturing
Review
Description
Product Overview
Custom LSR overmolded PCB silicone covers are designed to protect electronic circuit boards from moisture, dust, vibration and environmental impact.
Liquid silicone rubber is directly molded onto the specified PCB or electronic substrate area to create an integrated protective structure.
Compared with traditional assembled silicone covers, LSR overmolding reduces assembly steps and provides stable sealing performance for electronic applications.
SiliconePlus supports custom silicone overmolding development based on PCB drawings, samples and application requirements.
Why Use LSR Overmolding for PCB Protection
Electronic modules often require reliable protection without increasing assembly complexity.
LSR overmolding provides:
• Waterproof protection
• Dust resistance
• Shock absorption
• Flexible silicone protection
• Stable dimensional performance
• Integrated silicone-to-substrate bonding
For customized electronic silicone sealing solutions, you can also review our silicone over FPC and silicone over plastic capabilities.
PCB Silicone Protection Structure
Integrated LSR silicone protection structure molded onto PCB electronic components.
LSR Overmolding Detail
Close-up view showing silicone bonding area and molded protection boundary.
Material and Manufacturing Structure
The silicone protection component is manufactured using liquid silicone rubber injection molding technology.
Typical design considerations include:
• PCB/FPC substrate structure
• Silicone thickness
• Bonding area
• Waterproof requirements
• Compression design
• Material hardness
• Production tolerance
The final structure is customized according to customer drawings and application requirements.
Applications and Customization
Custom PCB silicone overmolding components are widely used in:
• Automotive electronic modules
• EV charging systems
• Battery management systems
• Industrial control equipment
• Sensors
• Smart electronic devices
Customization includes silicone material selection, overmolding area design, hardness, color and production requirements.













