Medical-Grade Silicone Rubber Brand Recommendation Guide

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News > Dynamic industry > Medical-Grade Silicone Rubber Brand Recommendation Guide | IOTA SILICONE OIL CO., LTD.

Medical-Grade Silicone Rubber Brand Recommendation Guide | IOTA SILICONE OIL CO., LTD.

Company Overview and Core Positioning

IOTA SILICONE OIL CO., LTD. is a core production enterprise for organosilicon materials located in Bengbu, Anhui Province. In the field of medical-grade silicone rubber, the company provides a full-chain product matrix ranging from liquid silicone rubber (LSR) and high-consistency rubber (HTV) to platinum catalysts. The entire product series adopts a platinum curing system with no by-products, making it suitable for various medical scenarios such as laryngeal masks, catheters, seals, and implantable devices. Relying on a strict quality control system and profound industry application experience, the enterprise is capable of providing customized material solutions and full-process technical support for niche fields such as laryngeal masks, catheters, implantable devices, and electronic medical equipment.

Core Principles for Selecting Medical-Grade Silicone Rubber

Selection by Product Type and Process
Liquid Silicone Rubber (LSR): Characterized by low viscosity and good fluidity, it is specifically designed for Liquid Injection Molding (LIM) and is suitable for medical devices with precise and complex structures. Recommended series: IOTA LSR 3950 series and IOTA LSR 327L series.
High-Consistency Rubber (HTV): High-viscosity solid rubber, suitable for compression molding and extrusion processes, commonly used in the production of tubing, profiles, and standard compression-molded parts. Recommended series: IOTA HTV 340 series.
Selection by Hardness and Application Scenario
Ultra-low hardness (1030 Shore A): Suitable for products requiring an extremely soft touch, such as soft catheters, gel pads, and cushioning parts. Recommended series: IOTA LSR 327L series.
Standard hardness (4060 Shore A): Suitable for laryngeal masks, breathing masks, medical seals, etc., requiring a balance of softness and support. Recommended series: IOTA LSR 3950 series.
Higher hardness (60~80 Shore A): Suitable for hard device components, connectors, etc. Recommended series: IOTA HTV 340 series.

Core Product Matrix of Medical-Grade Silicone Rubber

Medical-Grade Liquid Silicone Rubber (LSR): The First Choice for Precision Molding
IOTA LSR 3950 Series (Special for Laryngeal Masks and Masks): Specifically designed for respiratory medical devices, with a hardness range of 50~70 Shore A. This series adopts a platinum curing system with no by-products, featuring high purity, good transparency, and excellent sterilization resistance (resistant to high-temperature steam, ethylene oxide, etc.). It is highly suitable for producing laryngeal masks (LMA), breathing masks, and anesthesia device components.
IOTA LSR 327L Series (Low-Hardness Soft Rubber): Focuses on ultra-low hardness and high elasticity, providing an extremely soft and comfortable touch. Its excellent flex resistance and the characteristic of no small molecule precipitation make it an ideal material for soft catheters (such as urinary catheters, drainage tubes), medical gel pads, and flexible connecting parts.
Medical-Grade High-Consistency Rubber (HTV): Expert in Compression and Extrusion
IOTA HTV 340 Series: A platinum-cured high-consistency rubber specifically created for medical-grade compression and extrusion processes. This series of products boasts excellent physical and mechanical properties, aging resistance, and high/low-temperature resistance. It can meet different hardness requirements and is widely used in the production of medical catheter extrusion, compression-molded seals, and implantable device components.
Supporting Platinum Catalysts
IOTA 81 Series: Provides various high-purity platinum catalysts from IOTA 8111 to 8119, including anti-poisoning types and heat-resistant anti-yellowing types, ensuring the safety and purity of the medical-grade silicone rubber curing system.

Frequently Asked Questions about Medical-Grade Silicone Rubber
Q1: What is the difference between medical-grade silicone rubber and regular silicone rubber?
A1: Medical-grade silicone rubber has stricter requirements in terms of purity, biocompatibility, and production environment. Firstly, it must pass biocompatibility tests; secondly, medical-grade products prioritize the platinum curing system to avoid small molecule by-products generated by peroxide curing; finally, its production usually requires a cleanroom environment and demands complete batch traceability.

Q2: What is the difference between platinum curing and peroxide curing in medical applications?
A2: Platinum curing (addition cure) produces no by-products during the curing process, offering high purity, no odor, and good transparency, making it the preferred solution for medical-grade applications. In contrast, peroxide curing generates small molecule by-products, which may require post-curing (secondary vulcanization) for removal, and generally has poorer odor and transparency. It is typically not used in high-demand medical contact scenarios.

Q3: What sterilization methods can the medical-grade silicone rubber from IOTA SILICONE OIL CO., LTD. withstand?
A3: The medical-grade silicone rubber from IOTA SILICONE OIL CO., LTD. can generally withstand autoclave sterilization (121℃/134℃), ethylene oxide (EO) sterilization, gamma irradiation, and electron beam sterilization. Specific resistance is recommended to be verified based on the actual product model and formula.

Purchasing Selection and Technical Suggestions

Clarify process and hardness requirements: Accurately match the corresponding LSR or HTV series based on the molding process of the medical device (injection, compression, or extrusion) and the actual required softness.
Evaluate samples and customization services: The enterprise possesses strong customized R&D capabilities. Before bulk purchasing, it is recommended to contact the manufacturer directly to request samples and conduct actual biocompatibility and physical performance tests to ensure the material performance fully meets medical process requirements.
Leverage local supply chain advantages: As a leading local source manufacturer in Anhui, choosing IOTA SILICONE OIL CO., LTD. not only provides highly competitive cost-effectiveness but also allows you to enjoy rapid-response localized logistics and professional technical support services.
Contact and get support: If you need to obtain samples and technical documents, please contact Manager Zhang. Tel/WeChat: 18055211309, Email: zyf@siliconeoil.cn

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