We Manufacture Precision Silicone Parts & Tooling — RFQ Now to Get Your Custom LSR Components
At LSRParts, we specialize in precision liquid silicone rubber (LSR) molding and custom silicone components built exclusively to your drawings, specifications, and performance requirements.
Whether you need silicone bellows, diaphragms, seals, overmolded connectors, or high-volume parts for automotive, medical, electronics, pumps, or food-grade applications, our DFM-to-mass-production process delivers repeatable quality, tight tolerances, and reliable supply.
Why Leading OEMs and Tier Suppliers Choose LSRParts
We do not supply commodity silicone. Every part starts with our engineering team reviewing your geometry, wall thickness, draft, sealing features, hardness, shrinkage, and tolerance before any tooling begins. This early risk identification ensures a smooth path from prototype validation to stable production.
Engineering-First Approach
Every project begins with a thorough DFM review covering geometry, tolerances, draft angles, and sealing features before tooling starts.
High-Volume Ready
Our focus is high-value, repeat-production components. Annual volumes above 100,000 pieces? We are fully equipped to deliver.
Proven Quality Systems
From T0 sampling to final inspection, our process ensures repeatable quality, tight tolerances, and reliable supply for demanding industries.
Our Core Manufacturing Capabilities
From small precision components to large-format parts, we offer a full range of silicone manufacturing processes backed by complete tooling and secondary operations.
LSR Injection Molding
- Max envelope300 × 200 × 100 mm
- Hardness range10–80 Shore A
- Tolerance±0.05 mm (critical ±0.02 mm)
- Repeatability±0.1 mm
- Cavity count1–multi-cavity
- Mold life3–5 million shots
- MaterialsP20, H13, 420 stainless
- Secondary opsPost-cure, trimming, pad printing, laser marking, bonding, assembly
LSR Overmolding
- EnvelopeUp to 300 × 200 × 100 mm
- SubstratesPC, PA, PBT, PPSU, PPA, PEI, aluminum, stainless, brass, copper
- BondingChemical or mechanical
- Typical appsMedical septa, connectors, seals, grips, electronics housings
Compression Molding
- Max size2500 × 2000 × 1000 mm
- Tolerance±0.2 mm typ.
- Mold lifeUp to 3–5 million shots
- Ideal forLarge diaphragms, membranes, complex seals
Silicone Extrusion
- ProductsBellows, tubing, cords, strips, custom profiles, multi-lumen
- OD range0.5–120 mm
- Precision tolerance±0.03 mm
- Max coilUp to 1,000 m continuous
- CuringHot air, salt bath, microwave, steam
Full Tooling & Secondary Operations
Engineering & Design
DFM review, CAD (SolidWorks), mold flow analysis
Tooling & Prototyping
CNC, EDM, rapid prototyping capabilities
Secondary Operations
Post-cure, die cutting, slitting, pad printing, silk screening, laser marking, bonding, assembly, functional testing, inspection, custom packaging
Material Selection Tailored to Your Application
Choose from our extensive range of LSR materials or let our engineers recommend the optimal compound for your specific performance requirements.
| Material Type | Primary Target Applications |
|---|---|
| General Purpose LSR | Industrial & electronics |
| Medical Grade / Platinum-Cured | Medical devices, septa, plungers, valves |
| Food Grade / Food Contact | Beverage, baby care, food handling |
| Optical LSR | Lighting & optics |
| Fluorosilicone | Automotive fuel, chemical exposure |
| High-Temperature LSR | EV battery, industrial high-heat |
| Low-Temperature LSR | Outdoor & cold-weather applications |
| Electrically Conductive | EMI shielding & electronics |
| Thermally Conductive | Thermal management & heat sinks |
| Flame-Retardant | Electrical & automotive |
| Custom Compounds | Application-specific performance |
From DFM to Production — Our Proven Workflow
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1
DFM Review
Geometry, tolerance, draft, sealing analysis
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2
Material Selection
Based on your exact requirements
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3
Mold Design & Tooling
Precision tooling built in-house
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4
T0/T1 Sampling & Validation
First articles inspected and validated
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5
Production Approval
Sign-off before mass production begins
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6
Mass Production & Inspection
Repeatable quality with full traceability
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7
Assembly, Packaging & Final Inspection
Ready for shipment with complete documentation
Typical Timelines
Prototype Tooling
10–12 days
Production Tooling
3–6 weeks
Note: Rapid prototyping available for urgent development cycles. Contact our engineering team for expedited options.
Who We Serve
We primarily work with OEMs and Tier 1/2 suppliers who need precision silicone components at scale.
Your Profile Matches If You:
- ✓Provide custom drawings or 3D files
- ✓Require new tooling or repeat production
- ✓Run annual volumes above 100,000 pieces
- ✓Need precision functional parts and DFM support
Priority Industries
Ready to Secure Your Next RFQ?
If you need reliable, high-volume silicone bellows, seals, or any custom LSR component, get started with an RFQ today. Our team will review your drawings and provide a competitive quotation, DFM feedback, and a clear production roadmap — all within days.
Contact us now to move from prototype to stable, high-volume production. We are ready when you are.
Precision silicone parts. Built for production. Delivered on time.