Medical Grade Liquid Silicone Contact Pad

Medical Grade Liquid Silicone Contact Pad (hereafter referred to as the LSR contact pad) is a precision-molded silicone product manufactured by 橡楚（湖北）橡胶有限公司 from low-volatility, biocompatible liquid silicone rubber (LSR) specifically designed for repeated skin and soft tissue contact in medical and healthcare settings. Unlike general-purpose rubber contact pads, our product is formulated to meet strict biocompatibility requirements for long-term or repeated skin contact, with excellent softness, non-slip grip, and resistance to repeated sterilization cycles.

Our LSR contact pads are produced via injection molding of raw platinum-catalyzed liquid silicone rubber, eliminating the residual cross-linking byproducts common in condensation-cured silicones. They maintain consistent physical performance across a wide temperature range, do not leach harmful additives into biological tissues, and resist staining, bacterial colonization, and degradation from repeated exposure to common medical disinfectants. This product is developed to meet the core needs of medical device manufacturers, clinical care institutions, and rehabilitation equipment suppliers for a reliable, safe contact interface between hard medical equipment and human tissue.

橡楚（湖北）橡胶有限公司 is located at 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号, and specializes in the production of custom and standard LSR products for industrial and medical applications, with strict raw material incoming inspection and in-process quality control to ensure every batch of contact pads meets consistent biocompatibility and performance standards.

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Technical Specifications

Material Properties

Physical Performance

Process Parameters (Custom Molding)

For custom-sized and shaped contact pads, our standard production parameters are:

• Minimum wall thickness: 0.5 mm
• Maximum size tolerance: ±0.1 mm for dimensions <100 mm, ±0.2 mm for dimensions 100–300 mm
• Standard surface finish: Matte (20–30 Ra) / Glossy (2–5 Ra) available on request
• Minimum order quantity for custom specifications: 500 pieces

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Product Advantages

1. Proven Biocompatibility for Medical Use

All raw materials used for our medical grade LSR contact pads are sourced from certified LSR suppliers with pre-tested biocompatibility, and we do not add any unapproved processing agents or plasticizers during production. Unlike natural rubber pads, our product is entirely latex-free, eliminating the risk of latex allergic reactions for patients and healthcare workers. The low-volatility formulation prevents leaching of organic compounds onto skin or medical devices, meeting the basic safety requirements for prolonged contact with intact skin.

1. Excellent Durability Through Repeated Sterilization

Platinum-catalyzed LSR has inherently better thermal and chemical stability than organic rubber or condensation-cured silicone. Our contact pads resist cracking, hardening, or discoloration after more than 500 cycles of 121°C autoclave sterilization, outperforming general-purpose silicone pads that often degrade after 100–200 cycles. They are also resistant to corrosion from common medical disinfectants including quaternary ammonium compounds, chlorhexidine, and isopropyl alcohol, maintaining non-slip performance and physical integrity for long-term use.

1. Customizable Softness and Grip Performance

We offer a full range of hardness options from 10 Shore A (extra soft for pressure redistribution) to 50 Shore A (firmer for structural support) to match different application requirements. The non-porous surface of LSR provides consistent non-slip grip without using adhesive coatings, so the pad stays firmly in place on both device surfaces and skin without leaving residue. The soft, conformable nature of LSR allows the pad to adapt to body contours, reducing pressure points and improving patient comfort during long-term use.

1. Non-Porous Surface Inhibits Bacterial Growth

Unlike open-cell foam or porous rubber materials, LSR has a fully closed, non-porous surface that does not absorb bodily fluids, ointments, or disinfectants. This makes the pad easy to clean and disinfected thoroughly, and significantly reduces the risk of cross-contamination and bacterial colonization between uses, a critical advantage for reusable medical equipment.

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Applications

Our Medical Grade Liquid Silicone Contact Pads are suitable for a wide range of medical, rehabilitation, and home healthcare applications, including but not limited to:

• Patient Support & Positioning Equipment: Contact pads for operating table pressure points, diagnostic imaging tables, and wheelchair seating cushions. The soft LSR material evenly distributes patient weight, reducing the risk of pressure injuries during long procedures or extended daily use.
• Rehabilitation & Orthopedic Devices: Interface pads for orthotic braces, prosthetic sockets, physical therapy traction equipment, and fracture fixation braces. The conformable LSR improves fit, reduces friction between the device and skin, and lowers the risk of skin irritation and abrasion.
• Medical Device Components: Contact pads for patient monitoring devices (including ECG electrode pads, blood pressure cuff liners, and pulse oximeter contact cushions) and dental examination mouth props. The biocompatible formulation does not interfere with sensor accuracy, and the soft surface improves patient comfort during prolonged monitoring.
• Home Healthcare Products: Contact interface pads for hospital beds, lift assist devices, mobility walkers, and at-home wound care support equipment. The easy-to-clean, durable design meets the needs of long-term at-home care.
• Veterinary Medical Equipment: Contact pads for veterinary operating tables, examination tables, and pet orthopedic devices. The resistance to bodily fluids and easy disinfection makes it ideal for veterinary clinical use.

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Selection Guide

To ensure the contact pad meets your specific application requirements, we recommend selecting the appropriate specification based on the following criteria:

Hardness Selection

• 10–20 Shore A (Extra Soft): Recommended for pressure redistribution applications, such as operating table contact pads and long-term wheelchair support pads, where maximum conformability and pressure reduction are the top priorities.
• 20–30 Shore A (Medium Soft): The most common option for orthotic braces, prosthetic socket liners, and patient monitoring device pads, balancing conformability and structural support.
• 30–50 Shore A (Medium Firm): Recommended for structural contact pads that require higher load-bearing capacity, such as lift equipment contact pads and traction device interface pads, where shape retention under repeated load is critical.

Size Specifications

We offer standard stock sizes for common applications (100×100 mm, 150×200 mm, 200×300 mm in rectangular shape, and 50–150 mm diameter for round pads), and can also produce custom-sized and custom-shaped contact pads per your 2D/3D design drawings to match specific device dimensions. We support custom cut-outs, contours, and adhesive backing for easy installation.

Material Grade

• Standard Medical Grade: Meets ISO 10993 biocompatibility requirements for prolonged skin contact, suitable for most reusable medical devices and clinical equipment.
• Antistatic Medical Grade: Custom formulation with controlled surface resistivity, suitable for use in operating rooms and diagnostic imaging equipment where electrostatic discharge protection is required.

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Quality Assurance

橡楚（湖北）橡胶有限公司 operates a quality management system certified to ISO 9001, with systematic quality control covering every stage of production from raw material incoming inspection to finished product outgoing testing. All batches of Medical Grade Liquid Silicone Contact Pads undergo full inspection including:

• Biocompatibility verification of raw material batches
• Visual inspection for surface defects and dimensional accuracy
• Hardness and physical performance testing per batch
• Compatibility verification for your specified sterilization method (on request)

We provide batch traceability for all products, and can supply material test reports (MTR) and biocompatibility test documentation to support your product registration requirements.

For inquiries or custom orders, please contact us at:

• Address: 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号
• Phone: +86 18071171144
• Email: churubber@163.com