Overview
Medical Grade Silicone is a highly purified silicone elastomer specifically developed for medical, pharmaceutical, biotechnology, and healthcare applications. It offers exceptional biocompatibility, chemical stability, flexibility, sterilization resistance, durability, and long-term physiological safety.
Medical Grade Silicone is manufactured under strict quality controls and complies with international medical standards such as USP Class VI, ISO 10993, and in many cases FDA regulations for healthcare applications.
Due to its excellent tissue compatibility and resistance to body fluids, Medical Grade Silicone has become one of the most widely used materials in modern healthcare products.
Medical Grade Silicone is widely used in:
- Medical Devices
- Implantable Components
- Catheters
- Respiratory Equipment
- Surgical Instruments
- Wearable Medical Devices
- Pharmaceutical Processing Equipment
- Healthcare Consumables
Its combination of safety, flexibility, and durability makes Medical Grade Silicone the benchmark elastomer for medical applications.
Material Specification
| Property | Value |
|---|---|
| Material Designation | Medical Grade Silicone |
| Full Name | Medical Silicone Rubber |
| Material Family | Silicone Elastomer (VMQ) |
| Density | 1.10–1.30 g/cm³ |
| Appearance | Transparent, Translucent, White |
| Hardness Range | Shore A 10–80 |
| Typical Manufacturing Methods | Compression Molding, Injection Molding, LSR Molding, Extrusion |
| Standard Forms | Tubing, Sheets, Molded Parts, LSR Components |
Regulatory Compliance
| Standard | Compliance |
|---|---|
| USP Class VI | Available |
| ISO 10993 | Available |
| FDA Medical Applications | Available |
| RoHS | Compliant |
| REACH | Compliant |
| ISO 13485 Manufacturing | Available |
Medical Grade Silicone is specifically designed for direct and indirect medical contact applications.
Chemical Composition
Medical Grade Silicone is formulated from ultra-high-purity silicone polymers.
| Component | Function |
|---|---|
| Medical Grade Polysiloxane | Elastic Matrix |
| High-Purity Silica Fillers | Reinforcement |
| Platinum Cure System | Crosslinking |
| Medical Additives | Performance Enhancement |
| Biocompatible Pigments | Color Control |
Most medical-grade silicones utilize platinum-cure systems to minimize extractables and impurities.
Common Medical Silicone Grades
| Grade | Characteristics |
|---|---|
| Medical Grade Silicone | General Healthcare Applications |
| Implantable Silicone | Long-Term Implant Use |
| Short-Term Implant Silicone | Temporary Implant Applications |
| Platinum-Cured Silicone | Highest Purity |
| Medical LSR | Precision Injection Molding |
| Radiopaque Silicone | Imaging Visibility |
Mechanical Properties
Typical Values
| Property | Value |
|---|---|
| Tensile Strength | 7–12 MPa |
| Elongation at Break | 300–800% |
| Tear Strength | 20–60 kN/m |
| Compression Set | Low |
| Hardness | Shore A 10–80 |
| Resilience | Excellent |
Typical Mechanical Performance
| Property | Performance |
|---|---|
| Flexibility | Outstanding |
| Elastic Recovery | Outstanding |
| Tear Resistance | Excellent |
| Fatigue Resistance | Excellent |
Medical Grade Silicone maintains flexibility and durability throughout prolonged service life.
Physical Properties
| Property | Value |
|---|---|
| Density | 1.10–1.30 g/cm³ |
| Water Absorption | Very Low |
| Thermal Conductivity | 0.15–0.30 W/m·K |
| UV Resistance | Outstanding |
| Ozone Resistance | Outstanding |
Medical Grade Silicone exhibits exceptional environmental stability.
Thermal Properties
| Property | Value |
|---|---|
| Continuous Service Temperature | -60°C to 200°C |
| High Temperature Grade | Up to 250°C |
| Short-Term Temperature Resistance | Up to 300°C |
| Brittleness Temperature | Below -70°C |
Suitable for sterilization, refrigeration, and body-temperature applications.
Biocompatibility Properties
| Property | Performance |
|---|---|
| Skin Contact Safety | Outstanding |
| Tissue Compatibility | Outstanding |
| Cytotoxicity Resistance | Excellent |
| Long-Term Implant Compatibility | Available |
| Allergen Risk | Very Low |
Medical Grade Silicone is one of the most biocompatible elastomer materials available.
Sterilization Resistance
| Sterilization Method | Performance |
|---|---|
| Steam Autoclave | Outstanding |
| Ethylene Oxide (EtO) | Outstanding |
| Gamma Radiation | Excellent |
| Electron Beam | Excellent |
| Chemical Sterilization | Excellent |
Medical Grade Silicone withstands repeated sterilization cycles with minimal degradation.
Chemical Resistance
| Chemical Environment | Performance |
|---|---|
| Water | Outstanding |
| Body Fluids | Outstanding |
| Blood Contact | Excellent |
| Alcohols | Excellent |
| Cleaning Agents | Excellent |
| Disinfectants | Excellent |
| Dilute Acids | Good |
| Dilute Alkalis | Good |
Medical Grade Silicone remains stable in healthcare and pharmaceutical environments.
Electrical Properties
| Property | Value |
|---|---|
| Volume Resistivity | >10¹⁴ Ω·cm |
| Dielectric Strength | 18–25 kV/mm |
| Dielectric Constant | 2.8–3.3 |
| Arc Resistance | Excellent |
Suitable for medical electronics and diagnostic equipment.
Compression Set Resistance
| Property | Performance |
|---|---|
| Elastic Recovery | Outstanding |
| Seal Retention | Outstanding |
| Long-Term Flexibility | Outstanding |
| Gasket Performance | Excellent |
Excellent compression-set resistance makes it ideal for medical seals and valves.
Manufacturing Characteristics
| Manufacturing Process | Rating |
|---|---|
| Compression Molding | Outstanding |
| Injection Molding | Outstanding |
| Liquid Silicone Rubber (LSR) Molding | Outstanding |
| Extrusion | Outstanding |
| Overmolding | Excellent |
Medical Grade Silicone supports both prototype and high-volume medical production.
International Equivalent Standards
| Standard | Equivalent |
|---|---|
| USP Class VI | Medical Silicone |
| ISO 10993 | Biocompatible Silicone |
| FDA | Medical Device Silicone |
| ISO | VMQ |
| DIN | Silikon-Kautschuk |
| GB/T (China) | 医疗级硅胶 |
Available Forms
| Product Type | Availability |
|---|---|
| Medical Tubing | Yes |
| Sheets | Yes |
| Molded Parts | Yes |
| LSR Components | Yes |
| Extruded Profiles | Yes |
| Implant Components | Yes |
Typical Applications
Medical Device Industry
- Catheters
- Valve Components
- Drug Delivery Systems
- Medical Tubing
Implantable Applications
- Long-Term Implants
- Soft Tissue Components
- Implant Seals
- Prosthetic Components
Respiratory Equipment
- Breathing Masks
- Ventilator Components
- Oxygen Delivery Systems
Surgical Equipment
- Surgical Instrument Components
- Sterile Seals
- Medical Gaskets
Wearable Healthcare Devices
- Skin Contact Components
- Wearable Sensors
- Health Monitoring Devices
Pharmaceutical Industry
- Fluid Transfer Tubing
- Bioprocess Components
- Pharmaceutical Seals
Advantages
Exceptional Biocompatibility
Suitable for direct contact with skin, tissue, and body fluids.
Outstanding Sterilization Resistance
Supports repeated autoclave, EtO, and gamma sterilization cycles.
Excellent Flexibility
Maintains softness and elasticity across a wide temperature range.
Long Service Life
Resists aging, UV exposure, ozone, and environmental degradation.
High Purity
Low extractables and minimal contamination risk.
Regulatory Compliance
Available with USP Class VI, ISO 10993, and FDA certifications.
Limitations
Higher Cost
More expensive than general-purpose silicone and industrial elastomers.
Lower Mechanical Strength
Not suitable for highly loaded structural applications.
Moderate Oil Resistance
Not ideal for prolonged exposure to petroleum-based fluids.
Specialized Validation Requirements
Medical applications often require extensive regulatory documentation.
Comparison with Silicone Grades
| Property | Medical Silicone | Food Grade Silicone | Industrial Silicone |
|---|---|---|---|
| Biocompatibility | Outstanding | Excellent | Moderate |
| Sterilization Resistance | Outstanding | Excellent | Good |
| Purity | Highest | High | Standard |
| Regulatory Compliance | Medical | Food Contact | Industrial |
| Cost | Highest | High | Moderate |
Comparison with Medical TPU
| Property | Medical Silicone | Medical TPU |
|---|---|---|
| Flexibility | Better | |
| Biocompatibility | Comparable | |
| Temperature Resistance | Better | |
| Tear Strength | Lower | |
| Sterilization Resistance | Better |
Medical Silicone is often preferred for long-term flexibility and sterilization durability.
Available Surface Finishes
Standard Finishes
- Smooth Medical Surface
- Transparent Finish
- Matte Finish
Functional Finishes
- Implant Grade Finish
- Pharmaceutical Grade Finish
- Skin Contact Finish
Specialty Grades
- USP Class VI Silicone
- ISO 10993 Silicone
- Implantable Silicone
- Platinum-Cured Silicone
- Medical LSR
Frequently Asked Questions (FAQ)
What is Medical Grade Silicone?
Medical Grade Silicone is a highly purified silicone elastomer specifically designed for healthcare, pharmaceutical, and medical device applications.
What is Medical Grade Silicone used for?
Typical applications include:
- Catheters
- Medical Tubing
- Respiratory Devices
- Wearable Medical Products
- Implantable Components
Is Medical Grade Silicone biocompatible?
Yes. Medical Grade Silicone is one of the most biocompatible elastomer materials available.
Can Medical Grade Silicone be sterilized?
Yes. It withstands steam, EtO, gamma radiation, and chemical sterilization methods.
Is Medical Grade Silicone implantable?
Certain grades are approved for short-term or long-term implant applications.
Why choose Medical Grade Silicone?
Because it combines:
- Exceptional Biocompatibility
- Outstanding Sterilization Resistance
- High Purity
- Excellent Flexibility
- Long Service Life
What is the difference between Medical Grade Silicone and Food Grade Silicone?
Medical Grade Silicone must meet stricter biocompatibility and healthcare regulatory requirements, while Food Grade Silicone is primarily designed for food-contact safety.
Does GCNOV provide Medical Grade Silicone manufacturing services?
Yes. GCNOV provides:
- Medical Silicone Compression Molding
- Medical LSR Injection Molding
- Medical Device Component Manufacturing
- Silicone Tubing Production
- Implantable Component Development
- Prototype Development
- Low-Volume Production
- Mass Production