Medical Grade Liquid Silicone Rubber for Silicone Respiratory Masks
Product Overview
Medical Grade Liquid Silicone Rubber (LSR) 6250-50YH is specifically designed for manufacturing silicone respiratory masks, including CPAP masks, oxygen masks, and other breathing support devices. The material provides excellent softness, elasticity, and biocompatibility, ensuring a comfortable and secure fit for prolonged use.
Respiratory masks require materials that can maintain stable sealing performance, skin compatibility, and durability under repeated use. With a Shore A hardness of 50, this liquid silicone rubber offers an optimal balance between flexibility and structural support, allowing masks to conform closely to facial contours while maintaining their shape.
The material also features excellent resistance to deformation, aging, and repeated sterilization, making it highly suitable for long-term medical applications.
Key Features
- Medical-grade platinum-cured liquid silicone rubber
- Skin-friendly and suitable for prolonged facial contact
- Excellent elasticity and recovery performance
- High tear strength for repeated use
- Low tensile set for reliable sealing performance
- Resistant to sterilization and aging
Typical Technical Data
| Property | Unit | Value |
|---|---|---|
| Appearance | / | Transparent |
| Viscosity | Pa·s | 1.2 × 10⁶ |
| Hardness | Shore A | 50 |
| Density | g/cm³ | 1.10 |
| Resilience | % | 60 |
| Tensile Strength | MPa | 8 |
| Elongation at Break | % | 550 |
| Tear Strength | kN/m | 30 |
| Tensile Set | % | 1.7 |
| Linear Shrinkage | % | 2.6 |
Product Advantages
Superior Wearing Comfort
Soft and flexible material reduces facial pressure and improves long-term wearing comfort.
Excellent Sealing Performance
Low tensile set ensures consistent sealing, critical for respiratory mask functionality.
High Durability
Strong tear resistance and elasticity ensure long service life even under repeated use.
Stable Processing Performance
Suitable for precision LSR injection molding with consistent product quality.
Applications
- CPAP masks
- Oxygen masks
- Respiratory masks
- Medical sealing components
- Soft-contact medical silicone parts
Certifications
- ISO 10993 (Biocompatibility)
- ISO 13485 (Medical Quality Management)
- FDA / LFGB compliance (depending on application)
- RoHS & REACH compliant
Packaging
- 20 kg pails
- 200 kg drums
Store in a cool and dry place away from sunlight. Shelf life: 12 months.
About Ruihe New Material
Guangzhou Ruihe New Material Technology Co., Ltd is a professional manufacturer specializing in liquid silicone rubber (LSR) and solid silicone rubber (HCR). Our products are widely used in medical devices, respiratory equipment, baby care products, and industrial applications.
We provide stable quality, reliable supply, and customized silicone solutions to global customers.
FAQ
Q1: Why is LSR suitable for respiratory masks?
LSR offers excellent softness, sealing performance, and biocompatibility, making it ideal for long-term facial contact.
Q2: Can this material be used for CPAP masks?
Yes, it is widely used in CPAP and oxygen mask applications.
Q3: What hardness is suitable for respiratory masks?
Shore A 40–60 is commonly used. 6250-50YH provides a balanced performance.
Q4: Can it withstand sterilization?
Yes, it has excellent resistance to heat and sterilization processes.
Related Products
- Medical Grade LSR – 6250-40YH (softer, more flexible)
- Medical Grade LSR – 6250-60YH (higher strength and rigidity)
- Food Grade LSR – 6250-50FV (for non-medical applications)
Contact Us
Tel: 86 13421773611
Whatsapp / Wechat: 86 13421773611
Email: wendy@ruihesilica.com
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.