Custom Silicone Sensor Seals Manufacturer
Precision Sensor Seals Engineered for Demanding Environments
LSRParts specializes in custom liquid silicone rubber (LSR) and molded silicone sensor seals for automotive, industrial, medical, and consumer electronics applications. We partner with OEMs and engineering teams to produce seals built entirely around your drawings, application requirements, and performance specifications.
Why Choose LSRParts for Sensor Seals?
A reliable sensor seal starts long before the mold is cut. Our engineering team conducts comprehensive Design for Manufacturability (DFM) reviews prior to tooling, analyzing part geometry, wall thickness, draft, flash requirements, material hardness, shrinkage, and expected production volumes. This proactive approach identifies manufacturing risks early, ensuring a seamless transition from prototype validation to stable, repeatable mass production.
Our Typical Project Workflow
Sensor Seal Manufacturing Capabilities
LSRParts offers a comprehensive suite of silicone manufacturing processes to accommodate the specific geometry, tolerance, and volume requirements of your custom sensor seals.
LSR Injection Molding
For sensor seals requiring tight tolerances, complex geometries, and high-volume repeatability, LSR injection molding is the optimal process.
- Max Part Envelope300 × 200 × 100 mm
- Hardness Range10–80 Shore A
- Typical Tolerance±0.05 mm
- Critical Tolerance±0.02 mm
- Mold Tolerance±0.01 mm
- Production ScalePrototype to High-Volume
- AutomationAvailable
LSR Overmolding
Many modern sensors require seals directly bonded to housings or electrical components. We specialize in LSR overmolding onto plastics and metals using both chemical and mechanical bonding strategies.
Plastic Substrates
Metal Substrates
This process eliminates assembly steps and provides superior ingress protection (IP ratings).
Compression Molding
For larger sensor seals or lower-volume production runs where tooling cost is a primary consideration, our compression molding capabilities offer a versatile solution.
- Typical Tolerance±0.2 mm
- Small Cavity Tolerance±0.1–0.2 mm
- Part-to-Part Repeatability±0.1 mm
- Mold Life3–5 Million Shots
Advanced Tooling for Precision Seals
The quality of a sensor seal is directly tied to the quality of the mold. We utilize advanced CNC (3-axis/5-axis) and EDM (Sinker/Wire) machining to create high-precision tooling.
Production Tooling
Hardened steel: P20, NAK80, H13, S136, 420 Stainless
Rapid Tooling
Aluminum 6061, 7075 for prototyping (100–10,000 cycles)
Surface Finish
Ra 0.8 μm or better
Engineering Support
Mold flow review & DFM on all projects
Tooling Lead Times
High-Performance Silicone Materials
Sensor seals must often withstand extreme temperatures, chemical exposure, or electromagnetic interference. We guide your material selection from a wide matrix of silicone compounds.
Fluorosilicone
Ideal for automotive and industrial sensors exposed to fuels, oils, and harsh chemicals.
High/Low-Temperature Silicone
Maintains flexibility and sealing integrity in extreme outdoor or engine compartment environments.
Electrically Conductive Silicone
Provides EMI shielding for sensitive electronic sensors.
Thermally Conductive Silicone
Assists in thermal management around heat-generating sensor components.
Medical Grade / Platinum-Cured
For diagnostic and patient-monitoring medical sensors.
General Purpose LSR
Excellent for standard industrial and consumer electronic housing seals.
Secondary Operations & Post-Processing
To deliver production-ready components, LSRParts offers a complete range of secondary operations tailored to sensor seals:
Ideal Partner for High-Volume OEM Production
LSRParts is dedicated to supporting OEMs and Tier suppliers with high-value, repeat-production silicone components. We are the best-fit manufacturing partner for companies that:
- Have custom 3D CAD files or 2D drawings
- Require new, precision tooling
- Have annual production demands exceeding 100,000 pieces
- Need strict dimensional consistency and functional sealing performance
- Value upfront DFM and dedicated engineering support
Ready to Bring Your Sensor Seal Design to Mass Production?
Whether you are developing waterproof seals for consumer electronics, durable wire seals for EV battery sensors, or biocompatible seals for medical devices, LSRParts has the expertise and infrastructure to bring your design to mass production.
Submit Your Drawings for DFM ReviewRequest a Tooling Quotation
Contact LSRParts today to submit your drawings for a comprehensive DFM review and tooling quotation for your custom sensor seals.
Phone
info@lsrparts.com
Address