Self-Lubricating LSR Liquid Silicone Rubber for Waterproof Sealing Parts
Product Overview
Self-lubricating liquid silicone rubber is designed to exude a thin oil layer on the surface after curing, creating a natural slip effect that reduces friction and improves assembly efficiency. This grade is not recommended for food-contact products, and the oil content can be adjusted to match your design needs. For waterproof sealing parts, it helps reduce “stick-slip,” improves feel, and supports stable production.
Characteristics
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Surface oil exudation for self-lubricating / low-friction performance
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Injection molding grade with stable processing
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Soft hardness range for comfortable sealing contact
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Oil content adjustable (customization available)
Specific Applications
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Waterproof sealing rings, gaskets, caps, plugs
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Bathroom/household waterproof joints and sealing lips
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Sliding seals requiring reduced friction
Specification Table (6250-30SL)
| Item | Value |
|---|---|
| Appearance | Milky white |
| Hardness (Shore A) | 27–31 |
| Density (g/cm³) | 1.09–1.12 |
| Rebound (%) | ≥50 |
| Tear Strength (kN/m) | ≥15.0 |
| Tensile Strength (MPa) | ≥5.0 |
| Elongation (%) | ≥500 |
| Oil Content (%) | 6 |
| A-side Viscosity (Pa·s) | 1700 |
| B-side Viscosity (Pa·s) | 1400 |
Key Advantages
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Lower friction for easier assembly and smoother operation
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Better demolding and reduced surface scuffing
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Soft sealing contact with stable rebound
Certificates / Compliance
ISO 9001, RoHS, REACH, PAHs Free (available by request)
Packaging
20 kg pails (A/B) • 200 kg drums (A/B)
Contact
Tel: 86 13421773611 | Whatsapp/Wechat: 86 13421773611 | Email: wendy@ruihesilica.com
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

