LSR Injection Molding Services
At Wire Iran, Liquid Silicone Rubber (LSR) injection molding delivers precise, repeatable production for complex and high-quality silicone components. Using automated systems and cleanroom-capable facilities, we meet the most demanding medical, electronic, and industrial standards.
ISO/TS 16949
ISO 9002
ISO 3808
ISO 9001
ISIRI 4267-2
ISO 17025
10993-5
10993-10
10993-4
Pharma
ASTM F756
Precision Machinery & Process Control
Our automated LSR injection molding systems combine precise dosing, closed-loop process control, and high-accuracy injection to deliver zero-defect components. Using a platinum-cured, two-part liquid silicone system, we ensure consistent dimensional stability and surface quality across all production volumes—from micro-molded parts to large-scale geometries.
With advanced process monitoring and automation, we ensure each LSR component is produced with zero-defect quality, repeatable dimensions, and consistent performance—even for highly complex or medical-grade parts.
Advanced monitoring of material flow, pressure, and shot size guarantees efficiency, cleanliness, and compliance with the most demanding medical, food-grade, and industrial standards.
LSR Injection Molding Process Overview
We start with in-house silicone compound formulation, tailored for each application—whether requiring flame resistance, dielectric strength, UV/ozone durability, or FDA-grade purity. These compounds are processed through temperature-controlled extrusion lines with precise dosing and curing systems, ensuring uniform quality throughout the production run.
| Material Type | Typical Product | Applications | Key Properties |
|---|---|---|---|
| Medical-Grade LSR | Catheters, valves, Ambu bags, baby products, stoppers, respiratory components | Biocompatible, FDA & ISO 10993 compliant, sterilizable (steam, EtO, gamma), high purity, optical clarity | Medical devices, diagnostic tools, neonatal products |
| Electronics-Grade LSR | Keypads, connectors, gaskets, protective seals, flexible electronics | Precise molding for micro-parts, dielectric strength, flame-retardant grades, long-term stability | Electronics, sensors, flexible circuitry, protective sealing |
| Automotive-Grade LSR | Sensor covers, spark plug seals, grommets, cable insulation, gaskets | High tear strength, thermal resistance (-50°C to +200°C), vibration damping, oil & fuel resistance | Automotive sealing, sensors, electrical insulation, vibration dampers |
| Consumer-Grade LSR | Wearables, kitchenware, household components, baby products, food-grade molds | Food-grade & BPA-free, odorless, soft-touch, customizable hardness, colorable, dishwasher safe | Consumer goods, baby products, kitchen tools, wearables |
| Food & Beverage LSR | Sanitary seals, transfer tubing, gaskets, baking molds | FDA/EC compliant, non-toxic, resistant to fats/oils, hygienic, reusable under thermal cycling | Food processing, beverage transfer, sanitary seals |
| ndustrial-Grade LSR | Chemical-resistant seals, vibration dampers, thermal insulation components | Chemical stability, thermal endurance, compression set resistance, durable under harsh conditions | Industrial machinery, chemical processing, thermal insulation |
| Electrical-Grade LSR | High-voltage insulation, terminal boots, flame-retardant covers | Electrical insulation, arc resistance, flame retardancy (UL94 V-0 grades), long-term flexibility | Electrical and power systems, high-voltage components |
| Laboratory-Grade LSR | Tubing, stoppers, seals, chemically inert components | Non-reactive, transparent, withstands solvents & acids, suitable for analytical & biotech use | Analytical labs, biotech, research applications |
| Sanitary & Plumbing LSR | Valves, sealing rings, antimicrobial gaskets | Anti-microbial additives, hot-water resistance, scaling and mold growth resista | Plumbing, sanitary systems, antimicrobial seals |
| HVAC-Grade LSR | Heat-resistant seals, flexible connectors, insulating pads | Thermal stability, ozone & UV resistance, long service life, energy efficiency in sealing | HVAC systems, thermal insulation, ducting |
Customization: We offer a wide range of customization options to tailor LSR injection molded components to your exact application requirements. From material selection and color to durometer and mold design, our team ensures every detail meets your specifications while maintaining consistent quality across all production volumes.
| Category | Range / Specification |
|---|---|
| Prototype / sample runs | Available — small-batch samples before tooling |
| Mold & Tooling Design | CAD/CAM mold design, precision multi-cavity and micro-molds, prototype validation for complex geometries. |
| Material Processing | Platinum-cured, two-part LSR formulations, including medical-, food-, and industrial-grade materials tailored for your application. |
| Process Control | Automated injection, dosing, and closed-loop monitoring to maintain dimensional accuracy, surface quality, and material uniformity across all production volumes. |
| Part Features & Inserts | Overmolding, metal inserts, undercuts, and thin-wall geometries achievable with precise injection control. |
| Typical dimensional tolerance | ±0.2 mm typical |
| Color & Durometer | Custom color matching and hardness options (Shore A 30–80), optimized for functional and aesthetic requirements. |
| Surface finish | Matte, gloss, textured (specify during design review) |
| Batch traceability & documentation | CoA, test reports (ISO 17025 lab), material certifications on request |
| Need values outside these ranges or tighter specs? Contact our engineering team for feasibility and custom quotes. | |
High-Performance Materials & Versatile Applications
Our LSR process ensures fast curing, minimal shrinkage, and repeatable precision—even for complex designs. Materials are custom-formulated for UV, chemical, and thermal resistance, and comply with FDA, ISO 10993, and biocompatibility standards. We produce parts for medical devices, automotive seals, electronic insulation, and consumer goods, with options for enhanced tear strength, optical clarity, and tailored hardness.
Quality Assurance & Testing
We maintain strict process control and laboratory testing to ensure that every molded silicone component meets defined physical, mechanical, and regulatory specifications. Each LSR batch is tested in our ISO 17025-certified laboratory to verify curing uniformity, performance consistency, and biocompatibility. These procedures ensure full compliance with FDA, ISO 10993, and other medical, electronic, and industrial safety standards.
How to Request a Quote for Your LSR Injection Molding Project
Every project begins with understanding your requirements — whether you already have a detailed drawing or simply an idea of what you need. Our engineers and material experts guide you through each stage — from design to prototype to full production.
- Upload your drawing or specification — any format (PDF, STEP, DWG).
- Provide key details — operating temperature, environment, required hardness, and color.
- Our engineers review your design — suggesting optimal compound and process setup.
- Receive a detailed quotation — including lead time, pricing, and material options.
Once submitted, our engineering team provides a quotation and feasibility report within a few business days.