Wholesale LSR Liquid Silicone Rubber Supplier & Factory

Premium Platinum-Cured Elastomer Solutions for Medical, Automotive, and High-Performance Industrial Sourcing

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Providing industrial grade alloys, specialty gases, and advanced liquid rubber raw materials worldwide.

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The Global Industrial Paradigm of Liquid Silicone Rubber (LSR)

Liquid Silicone Rubber (LSR) has shifted from a specialized polymer to a cornerstone of modern high-precision engineering. Consisting of a platinum-cured two-component elastomer (comprising Part A and Part B), LSR has transformed how engineers approach complex sealing, insulation, and biocompatibility challenges. Unlike traditional solid silicone (HCR) or thermoplastic elastomers (TPE), LSR transitions directly from a liquid state into highly intricate molded components via automated Liquid Injection Molding (LIM) systems.

Globally, the market for LSR is surging, fueled by strict regulations in medical design, the electrification of vehicles (EVs), and the rise of smart wearable devices. The compound's molecular structure—characterized by a strong silicon-oxygen (Si-O) backbone—gives it unique properties: exceptional thermal stability ranging from -60°C to over 250°C, superb dielectric strength, low compression set, and unmatched ozone and UV resistance. For global procurement officers, choosing the right wholesale LSR supplier is not just about raw material costs; it is about finding a manufacturing partner who understands chemical purity, process automation, and global compliance standards.

Medical-Grade Biocompatibility

ISO 10993 and USP Class VI compliance makes LSR the standard material for skin contact, respiratory devices, and implantable medical components.

Thermal & Electrical Resistance

Outstanding dielectric properties combined with thermal stability, making it the perfect insulation barrier for high-voltage EV components and micro-electronics.

Automated Flashless Molding

Low viscosity enables complex geometries, short cycle times, and automated, flashless injection molding, cutting post-processing costs.

Company Profile: Yanxatech System Industries Limited

Yanxatech System Industries Limited (hereinafter referred to as YANXA) is a fast-growing supplier of specialty materials in China. Starting as a small, focused business unit in 2008, YANXA has been driven by a passion to develop broad international markets in chemical and mechanical manufacturing. Thanks to our team's persistent efforts and the long-term support of our business partners, YANXA has steadily grown into an industry leader, delivering high-performance products and services in specialty chemicals.

In cooperation with China's leading chemical manufacturers and research institutes, YANXA supplies a robust portfolio of advanced industrial materials:

  1. Liquid Rubber: Liquid Silicone Rubber (LSR), Epoxy Modified Liquid Rubber (EPB), and Liquid Styrene Butadiene Rubber (LSBR).
  2. Nitrate Compounds: High-grade specialty chemical precursors for industrial processes.
  3. Metal Powders & Alloys: Atomized Spherical Aluminum Magnesium Alloy Powder, Flake Zn-Al Alloy Powder, and related specialty formulations.

Our core philosophy centers on Quality, Safety, and Efficiency. We meet our customers' general requirements while also developing tailored formulations for unique, cutting-edge applications in a timely manner. We strictly follow technical requirements, ensuring delivery is in almost perfect conformity. Because the chemical industry involves high safety demands, YANXA is dedicated to handling all chemical materials safely, protecting both human health and the environment.

2008
Established Year
ISO 9001
Quality Certified
30+
Export Countries
100%
Quality Conformity

Strategic Manufacturing Advantages of Sourcing LSR from China

Sourcing Liquid Silicone Rubber from a Chinese factory like YANXA offers unmatched supply chain advantages, cost efficiencies, and technological integration. Over the past decade, China has built a complete upstream and downstream chemical ecosystem. This integration ranges from the extraction of silicon metal to the synthesis of silicone monomers, platinum catalyst formulation, and advanced compounding. This comprehensive network ensures that raw material supplies remain stable, insulating global buyers from volatile market swings.

Key advantages of sourcing from our ISO9001:2008 certified facility include:

  • Scalable Production Lines: Our manufacturing partners run state-of-the-art multi-ton polymerization systems, offering consistent batch-to-batch consistency for small runs and high-volume wholesale shipments alike.
  • Highly Competent Technical R&D: Backed by partnerships with China's leading research institutes, we customize properties like hardness, cure speed, oil resistance, and transparency to match your exact performance requirements.
  • Strategic Logistics: Based in China's key chemical manufacturing zones, we use optimized shipping routes, specialized packaging for hazardous chemicals, and fast custom clearance pathways. This setup ensures safe delivery to ports worldwide.

LSR Liquid Silicone Rubber Technical Specifications

Compare performance metrics across our standard, medical, electrical, and optical liquid silicone rubber formulations.

Property / Grade Standard Industrial Medical / Food Grade High-Voltage Electrical High-Clarity Optical
Curing System Platinum Cure (Addition) Platinum Cure (Addition) Platinum Cure (Addition) Platinum Cure (Addition)
Hardness (Shore A) 30 - 70 ± 5 20 - 80 ± 5 40 - 70 ± 5 50 - 80 ± 5
Tensile Strength (MPa) ≥ 7.5 ≥ 9.0 ≥ 6.5 ≥ 8.0
Elongation at Break (%) ≥ 350 ≥ 450 ≥ 300 ≥ 200
Tear Strength (kN/m) ≥ 25 ≥ 35 ≥ 20 ≥ 18
Dielectric Strength (kV/mm) ≥ 20 ≥ 22 ≥ 25 ≥ 21
Operating Temp Range (°C) -50 to +200 -60 to +220 -50 to +230 -40 to +200

Localized & Industry-Specific Application Scenarios for LSR

Modern manufacturing requires materials tailored to specific environmental stresses. Liquid Silicone Rubber is used across diverse industries due to its adaptability, chemical inertness, and structural strength under pressure.

1. Automotive & E-Mobility (EVs)

In electric vehicles, battery packs require extreme thermal insulation and flame-retardant sealing. Our specialty LSR serves as high-voltage wire connector seals, battery gasket cushions, and cooling pipe couplings. Its low compression set ensures that seals remain leak-proof for the vehicle's lifespan, even when exposed to engine heat, oil, and ozone.

2. Medical, Healthcare, & Food Processing

Because our medical-grade LSR is inert, it prevents bacterial growth and will not react with human tissue or fluids. Sourced by top medical device companies, it is used for surgical tool handles, syringe plungers, respiratory masks, and fluid delivery tubes. It easily stands up to repeated steam autoclaving, ethylene oxide (EtO), and gamma-ray sterilization cycles.

3. High-End Consumer Electronics

From smartwatches with skin-friendly bands to IP68 waterproof gaskets in high-end smartphones, LSR provides precise, thin-wall molding. Its flexibility and aesthetic versatility make it perfect for consumer touchpoints, while its excellent dielectric properties shield microelectronics from static discharge.

Original Specialty Chemical Portfolio

Explore chemical properties and specifications for our standard industrial compounds, intermediates, and specialty gases.

Formaldehyde

Formaldehyde

A colorless liquid, easily polymerized, soluble in water, alcohol, and ether. Commercially supplied as formalin (37-50% solution with methanol as an inhibitor). Relative density is 0.815/-20℃.

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Hexamethylenetetramine Hexamine

Hexamethylenetetramine (Hexamine)

A white crystalline powder produced by condensing formaldehyde and ammonia. A versatile organic intermediate for plastic resins, rubber processing, and pharmaceuticals. CAS: 100-97-0.

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Paraformaldehyde Powder 96%

Paraformaldehyde Powder 96%

A white powdery solid with a linear polymer structure of formaldehyde. Offering high content (≥96%), low acidity (≤0.05% formic acid), and controlled pH (5.0-7.0).

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Atomized Spherical Aluminum Magnesium Alloy Powder

Atomized Spherical Al-Mg Powder

High-grade atomized spherical alloy powder. Engineered for structural parts, pyrotechnics, and advanced metallurgy requiring uniform particle sizing.

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Carbon Tetrafluoride

Carbon Tetrafluoride

Ultra-pure semiconductor etchant gas. Highly stable fluorine source used in plasma etching applications for silicon wafers and microcircuitry fabrication.

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Tricalcium Phosphate

Tricalcium Phosphate

Food, pharmaceutical, and agricultural grade tricalcium phosphate. Actively used as an anti-caking agent, nutritional supplement, and chemical stabilizer.

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Sulfur Hexafluoride

Sulfur Hexafluoride

Highly reliable dielectric insulation gas, widely used in high-voltage switchgear, circuit breakers, and electronic systems to prevent electrical arcing.

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Essential Quality Standards & Sourcing Strategies for Procurement Officers

Sourcing high-performance chemicals internationally requires navigating complex logistics and quality control issues. When purchasing bulk LSR, alloy powders, or gas compounds, procurement professionals should focus on three main metrics:

  1. Certificate of Analysis (COA) Consistency: Ensure every batch is accompanied by trace-element analysis, viscosity reports, and shore hardness profiles. A minor deviation in viscosity can alter cycle times, leading to defects and downtime.
  2. Environmental and Safety Compliance: Make sure your supplier follows REACH, RoHS, and FDA guidelines. For volatile organics or hazardous powders, suppliers must provide compliant Safety Data Sheets (SDS) and use robust, certified packaging.
  3. Supply Chain Transparency & Lead Times: Work with suppliers who offer clear lead times. A reliable manufacturer will typically ship samples within 7 days and complete mass production within 20 to 30 days after receiving a deposit.

By partnering with YANXA, you benefit from our strict quality control. From testing raw silicon feedstocks to double-checking packaging integrity, we make sure your order arrives safely and conforms perfectly to your technical specifications.

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Frequently Asked Questions (FAQ)

Answers to common technical, logistics, and pricing questions about our specialty materials.

What are your prices?

Our prices are subject to change depending on supply, feedstock costs, and other market factors. Once your company contacts us, we will analyze your specific requirements (such as grade, volume, and packaging) and send you an updated price list tailored to your needs.

Do you have a minimum order quantity (MOQ)?

Yes, we require all international orders to maintain an ongoing minimum order quantity to ensure cost-efficient shipping and manufacturing. If you are looking to resell or run small trials, please contact our team to discuss potential arrangements.

Can you supply the relevant documentation?

Absolutely. We provide comprehensive documentation packages, including Certificates of Analysis (COA), Certificates of Conformance, Insurance Policies, Certificates of Origin, and all export documents needed to clear customs smoothly in your destination country.

What is the average lead time for samples and mass production?

For samples, our lead time is approximately 7 days. For mass production orders, the standard lead time is 20 to 30 days after receiving your deposit payment. These times start once we receive your deposit and you approve the final product specifications. If our schedule does not meet your deadline, please contact our sales manager to discuss alternative options; we will do our best to accommodate your needs.

What payment methods do you accept?

You can make payments directly to our bank account. Our standard terms are a 30% deposit in advance, with the remaining 70% balance paid against the copy of the B/L by T/T, or via an irrevocable L/C at sight.

What is the product warranty, and how do you handle quality disputes?

We fully warrant our materials and workmanship. Our ultimate goal is your complete satisfaction. Whether an issue falls under formal warranty terms or not, it is our company culture to address, troubleshoot, and resolve all customer concerns to your satisfaction.

How do you guarantee safe and secure delivery of chemical products?

Yes, we always use high-quality export-grade packaging. We use specialized, certified hazard packaging for dangerous cargo and temperature-controlled shippers for heat-sensitive items. Please note that specialized packaging or unique packing requirements may incur additional charges.

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