Liquid Silicone (LSR)

Biocompatible, heat-resistant liquid silicone rubber injection molding for medical, consumer, and industrial applications. Flash-free precision parts with excellent elastic memory.

Biocompatible
FDA Compliant
-60°C to +200°C
Flash-Free Molding
Medical Grade
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What We Offer

Our Liquid Silicone (LSR) Services

Medical Grade LSR

FDA-compliant, biocompatible LSR parts for medical devices, implantables, and drug-contact applications. ISO 10993 tested materials.
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Consumer LSR Parts

Baby products, kitchen utensils, wearables, and consumer goods requiring soft-touch feel, food-safe grades, and vibrant colors.
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Industrial LSR Seals

High-performance seals, gaskets, O-rings, and diaphragms with excellent chemical resistance and wide temperature range.
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2-Component LSR/Plastic

Overmolding LSR onto rigid thermoplastic substrates for integrated soft-hard assemblies in one production step.
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Micro LSR Parts

Micro-precision LSR molding for miniature medical components, micro-seals, and small-scale electronic encapsulation.
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Colored & Special LSR

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Custom colormatching, translucent/transparent grades, electrically conductive LSR, and self-lubricating formulations.
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Materials

Available Materials

We work with a wide range of materials to match your performance and budget requirements.
General-purpose liquid silicone rubber with hardness 10–80 Shore A. Excellent for most consumer and industrial applications.
Biocompatible grades tested per ISO 10993 for cytotoxicity, sensitization, and implantation. FDA-compliant.
FDA 21 CFR 177.2600 compliant LSR for food-contact applications. Suitable for baking, cooking, and food storage.
Maintains properties from -60°C to +230°C. Used in automotive and industrial environments with extreme thermal cycles.
Combines silicone elasticity with fluorocarbon chemical resistance for fuel, oil, and solvent contact applications.
Specifications

Technical Capabilities

Hardness Range

10 – 80 Shore A

Temperature Range

-60°C to +200°C (standard), up to +230°C (HT grade)

Dimensional Tolerance

±0.05 mm (standard), ±0.02 mm (precision)

Flash Thickness

<0.05 mm (near flash-free)

Min Wall Thickness

0.3 mm

Part Weight Range

0.01g – 500g

Colors

Custom Pantone/RAL matching, transparent, translucent

Certifications

ISO 10993, FDA 21 CFR, RoHS, REACH available

Lead Time

10–20 business days (mold + first samples)
FAQ

Frequently Asked Questions

LSR is a two-component platinum-cured system injected at low viscosity and cured in a closed mold. It produces flash-free, consistent parts at high speed.
Yes. We use masterbatch colorants to achieve custom colors matched to your Pantone or RAL specification.
Medical and food-grade LSR grades are available that comply with ISO 10993, FDA 21 CFR, and EU food contact regulations.
Standard tolerance is ±0.05mm. For critical medical applications, we can hold ±0.02mm with precision tooling and process control.
Yes. LSR bonds well to many thermoplastics using primer or self-adhesive grades.

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From 1 prototype to 100,000+ production parts

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