Custom Silicone Sealing Solutions
Custom ADAS, Radar & LiDAR Seals Manufacturer
LSRParts manufactures custom silicone seals and precision molded components for ADAS sensors, radar modules, LiDAR systems, camera housings, electronic enclosures and related automotive sensing assemblies.
Silicone Sealing Components for Automotive Sensor Systems
Modern driver assistance systems depend on stable sensor performance in demanding vehicle environments. Seals used around radar, LiDAR and camera modules must protect sensitive electronics from water, dust, vibration, temperature cycling and long-term compression set, while maintaining tight dimensional control during repeat production.
Radar & Sensor Protection
- Radar housing seals
- Sensor housing seals
- EMI-sensitive electronic enclosure seals
LiDAR & Optical Systems
- LiDAR module seals
- Lens and cover seals
- Camera module gaskets
Connectors & Wiring
- Connector interface seals
- Wire and cable seals
- Overmolded silicone sealing features
Each component is manufactured around the customer's drawing, 3D file, assembly requirements and validation targets. We support OEMs, Tier suppliers and engineering teams from early DFM review and material selection through tooling, sampling, validation, mass production, secondary operations and final inspection.
Built Around Your Drawing and Application
LSRParts focuses on custom production-ready silicone components rather than standard off-the-shelf rubber parts. For ADAS, radar and LiDAR sealing projects, we review the part design against the real assembly environment before tooling begins.
This early DFM process helps reduce tooling risk and gives customers a clearer path from prototype validation to stable mass production.
Start Your DFM ReviewEngineering Review Checklist
- ●Seal geometry and compression ratio
- ●Wall thickness and cross-section consistency
- ●Draft, undercuts and demolding feasibility
- ●Flash control requirements
- ●Critical dimensions and tolerance stack-up
- ●Housing material and bonding conditions
- ●LSR hardness and material grade selection
- ●Shrinkage and part-to-part repeatability
- ●Temperature, vibration and environmental exposure
- ●Annual volume and cavity planning
- ●Inspection method and packaging requirements
Typical ADAS Seal Applications
| Application Area | Example Silicone Components | Key Requirements |
|---|---|---|
| Radar Modules | Housing gaskets, connector seals, cable seals | Dimensional stability, water resistance, repeatable compression |
| LiDAR Systems | Lens seals, cover seals, module gaskets | Clean molding, precise fit, stable sealing performance |
| Camera Systems | Camera housing seals, lens interface gaskets | Dust protection, moisture resistance, controlled flash |
| Sensor Housings | Peripheral seals, internal isolation seals | Assembly fit, compression control, durability |
| Automotive Connectors | Wire seals, interface seals, overmolded seals | Material reliability, sealing consistency, repeat production |
| EV Electronics | Battery sensor seals, electronic enclosure gaskets | Thermal resistance, long-term sealing, functional consistency |
Manufacturing Capabilities for ADAS, Radar and LiDAR Seals
LSRParts provides multiple silicone manufacturing processes depending on part geometry, volume, material and assembly requirements.
LSR Injection Molding
Liquid silicone rubber injection molding is commonly used for precision automotive seals requiring repeatable dimensions, clean processing and high-volume production.
| Process | Liquid Silicone Rubber Injection Molding |
| Maximum Part Envelope | 300 x 200 x 100 mm |
| Silicone Hardness | 10-80 Shore A |
| Typical Part Tolerance | +/-0.05 mm |
| Critical Tolerance | Down to +/-0.02 mm, application dependent |
| Mold Manufacturing Tolerance | +/-0.01 mm |
| Part-to-Part Repeatability | Approx. +/-0.1 mm, geometry dependent |
| Mold Cavities | Single-cavity / Multi-cavity |
| Production Mold Life | 3-5 million shots, tooling/application dependent |
| Mold Materials | P20 / H13 / 420 Stainless Steel |
| Tooling Type | Prototype Tooling / Production Tooling |
| Production Scale | Prototype to high-volume mass production |
| Color | Custom / Pantone matching |
| Surface | Custom texture / matte / polished |
| Automated Molding | Available |
| Secondary Operations | Post-curing, trimming, printing, laser marking, bonding, assembly |
LSR Overmolding
For ADAS assemblies that require silicone bonded to plastic or metal substrates, LSR overmolding can create integrated sealing features, soft interfaces and assembled functional parts.
| Maximum Part Envelope | 300 x 200 x 100 mm |
| LSR Hardness | 10-80 Shore A |
| Mold Tolerance | +/-0.01 mm |
| Typical Part Tolerance | +/-0.05 mm |
| Mold Cavities | Single / Multi-cavity |
| Mold Life | 3-5 million shots depending on tooling |
| Plastic Substrates | PC, PA, PBT, PPSU, PPA, PEI etc. |
| Metal Substrates | Aluminum, Stainless Steel, Brass, Copper |
| Bonding | Chemical / mechanical bonding strategy |
| Insert Molding | Supported |
| Typical Applications | Medical devices, connectors, seals, grips, electronics |
| Post Processing | Post-cure, trimming, printing, marking, assembly |
For radar, LiDAR and automotive electronic assemblies, overmolding may be used when a seal must remain fixed to a rigid carrier, connector body, bracket or enclosure component.
Silicone Compression Molding
Compression molding is suitable for larger silicone gaskets, low-to-medium complexity sealing parts and components where part size exceeds typical LSR injection molding limits.
| Process | Silicone Rubber Compression Molding |
| Maximum Size | 2500 x 2000 x 1000 mm |
| Typical Part Tolerance | +/-0.2 mm |
| Small Part Mold Cavity Tolerance | +/-0.1-0.2 mm |
| Complex Part Mold Cavity Tolerance | +/-0.3-0.5 mm |
| Part-to-Part Repeatability | Approx. +/-0.1 mm |
| Cavities | Single / Multi-cavity |
| Mold Life | Up to 3-5 million shots, application dependent |
| Mold Materials | P20 / H13 / 420 Stainless Steel |
| Secondary Operations | Post-cure, trimming, punching, drilling, printing, bonding, assembly |
Silicone Extrusion
Silicone extrusion supports sealing profiles, tubing, cords and custom cross-sections used in automotive electronics, sensor housings, cable routing and environmental protection systems.
| Products | Tubing, cords, strips, custom profiles, multi-lumen tubing |
| Tubing OD | 0.5-120 mm |
| Standard Cross-Section Tolerance | +/-0.05 mm |
| Precision Cross-Section Tolerance | +/-0.03 mm |
| Wall Thickness | 0.3-15 mm |
| Length | Cut-to-length / Continuous coils |
| Maximum Continuous Coil | Up to 1,000 m |
| Curing | Hot air / Salt bath / Microwave / Steam |
| Surface | Smooth / Matte / Textured / Fabric impression |
| Color | Pantone / RAL matching |
| Production Volume | Prototype to 1M+ meters/year |
| Secondary Operations | Cutting, coiling, joining, marking, inspection, packaging |
Materials for ADAS and Automotive Sensor Seals
Material selection depends on the sealing environment, operating temperature, chemical exposure, assembly method and validation requirements. LSRParts helps customers select silicone materials based on the application instead of treating hardness as the only specification.
| Material | Target Applications |
|---|---|
| General Purpose LSR | Industrial / electronics |
| Platinum-Cured Silicone | Automotive electronic seals requiring clean, reliable molding |
| High-Temperature Silicone | Automotive / industrial environments |
| Low-Temperature Silicone | Outdoor / automotive exposure |
| Fluorosilicone | Automotive / fuel / chemical exposure |
| Electrically Conductive Silicone | Electronics / EMI |
| Thermally Conductive Silicone | Thermal management |
| Flame-Retardant Silicone | Electrical / automotive |
| Custom Compounds | Application specific |
Common Selection Factors
- Shore A hardness
- Compression set resistance
- Tear strength
- Temperature resistance
- Weathering and aging performance
- Chemical exposure
- Electrical or thermal performance
- Color and surface finish
- Bonding behavior for overmolding or assembly
Tooling for Precision Silicone Seals
A reliable ADAS seal starts with accurate tooling. LSRParts provides mold design and in-house tooling support for prototype and production programs. For ADAS, radar and LiDAR seals, mold design may need to account for thin sealing lips, controlled flash zones, automated demolding, critical shut-offs, gate location, cosmetic surfaces and inspection access.
| DFM | Yes |
| CAD | SolidWorks / CAD |
| Mold Flow Review | Supported |
| CNC | 3-axis / 5-axis CNC |
| EDM | Sinker EDM / Wire EDM |
| Rapid Tooling | Aluminum tooling |
| Rapid Tool Life | Approx. 100-10,000 cycles |
| Production Tooling | Hardened steel tooling |
| Common Mold Steel | P20 / NAK80 / H13 / S136 / 420 |
| Stainless Tooling | 316 / 420 where applicable |
| Aluminum Tooling | 6061 / 7075 |
| Tool Surface Finish | Ra 0.8 um or better where required |
| Prototype Tool Lead Time | Benchmark approx. 10-12 days |
| Production Tool Lead Time | Benchmark approx. 3-6 weeks |
| Sampling | T0 / T1 / validation |
| Multi-Cavity Tooling | Yes |
| High-Volume Tooling | Yes |
Secondary Operations and Inspection
Many automotive sensor sealing components require post-processing, marking, assembly or functional checks before shipment. LSRParts provides secondary operations to support production-ready supply.
Inspection plans can be adapted to the drawing, tolerance level and customer requirements. Typical inspection focus areas include critical dimensions, flash, surface defects, compression features, bonding quality, color, packaging condition and lot traceability.
| Post-Curing | Yes |
| Precision Trimming | Yes |
| Die Cutting | Yes |
| Punching | Yes |
| X / Y Slitting | Yes |
| Valve Slitting | Yes |
| Pad Printing | Yes |
| Silk Screening | Yes |
| Laser Marking | Yes |
| Drilling | Yes |
| Bonding | Yes |
| Dipping | Yes |
| Cutting & Coiling | Yes |
| Assembly | Yes |
| Functional Testing | Yes |
| Inspection | Yes |
| Custom Packaging | Yes |
From DFM to Mass Production
LSRParts supports projects from early development through validated production. This workflow is especially important for ADAS, radar and LiDAR components because sealing performance must remain stable across production lots, assembly conditions and vehicle operating environments.
Best-Fit Projects
LSRParts is a strong fit for customers developing custom silicone seals for automotive sensor and electronics programs where repeatable production matters. Our priority is high-value, repeat-production silicone components rather than low-volume commodity silicone products.
An ideal project typically includes:
- ✓Custom drawings or 3D files
- ✓New tooling requirements
- ✓Annual demand above 100,000 pcs
- ✓Precision or functional sealing requirements
- ✓Prototype-to-mass-production planning
- ✓Need for DFM and engineering support
- ✓Automotive, EV, sensor or electronics application requirements
Why OEMs and Tier Suppliers Work With LSRParts
LSRParts combines silicone molding, tooling, material selection and secondary operations to support production-ready sealing components for demanding applications.
- Custom LSR molding for precision seals and gaskets
- Silicone overmolding for plastic and metal substrates
- Prototype and production tooling support
- Tight tolerance capability for critical sealing features
- Material options for automotive and electronic environments
- Support from DFM review through mass production
- Secondary operations, inspection, assembly and packaging
- Manufacturing focused on repeatable custom components
Request a Quote for ADAS, Radar or LiDAR Seals
Send your drawing, 3D file, material requirement, annual volume, assembly information and validation requirements. LSRParts can review the part geometry, recommend a suitable silicone molding process, evaluate tooling requirements and provide a manufacturing path for prototype sampling and mass production.