Liquid Silicone Rubber (LSR) offers unparalleled precision and performance, making it the ideal choice for intricate molding and high-volume manufacturing. LSR is a two-part platinum-cured elastomer that cures quickly and evenly, providing excellent stability, flexibility, and resistance to extreme temperatures. It’s perfect for applications requiring high precision, such as medical devices, electronics, and consumer products.
Liquid Silicone Rubber (LSR)
LSWIC is a high-purity, platinum-cured elastomer designed for direct and repeated contact with food, medical, and healthcare components. This material is processed via liquid injection molding (LIM) and is suitable for high-volume, automated production environments. The formulation can be customized upon request to achieve hardness levels ranging from 30 to 70 Shore A.
| Property | LSWIC-1060 A/B | Test Methods | Notes |
|---|---|---|---|
| Color Options | Transparent, with custom color options available | DIN 53 504 | |
| Compression set (22h/ 175°c) (%) | 2.5% (typical) | DIN 53 517 | |
| Hardness (Shore A) | 60 | ||
| Tensile Strength | 6.5 MPa | DIN 53 505 | |
| Tear Strength (N/mm) | 25 N/mm | ASTM-D 624 die B | |
| Elongation at Break | 376% | DIN 53 504 | |
| Rebound resilience (%) | DIN 53 512 | ||
| Volume resistivity (Q-cm) | DIN 53 482 | ||
| Dielectric Strength (kV/mm) | DIN 53 481 | ||
| Dielectric Constant (E2 50 HZ) | DIN 53 483 | ||
| Dissipation factor (tan 6/1000 HZ) | DIN 53 483 | ||
| Viscosity | 20,000 - 200,000 cP (depending on formulation) | ||
| Curing Time | Fast curing, typically within minutes when heated | ||
| Crosslinking agent | |||
| Curing conditions |
ISO/TS 1694
ISO 9002
ISO 3808
ISO 9001
ISIRI 4267-2
ISO 17025
10993-5
10993-10
10993-4
Pharma
ASTM F756
| Key Highlights | Typical Applications | Features & Benefits | Compliance & Quality |
|---|---|---|---|
| • High-precision LSR for medical, food-contact, and industrial use • Biocompatible, non-toxic, FDA & ISO 10993 compliant • Rapid curing, low shrinkage, and high dimensional stability • Resistant to −50°C to +200°C, UV, chemicals, and aging • Custom formulations and colors available | • Medical Devices: Tubing, seals, valves, implantables • Electronics: Keypads, connectors, gaskets, insulation parts • Automotive: Precision seals, gaskets, O-rings • Consumer Goods: Baby products, kitchenware, wearables | • High-precision molding with consistent dimensional accuracy • Fast curing and minimal shrinkage for efficient production • Maintains flexibility, tear strength, and durability • Biocompatible and food-contact safe • Custom hardness, colors, and formulations for specific applications | • FDA and ISO 10993 compliant • Tested for medical-grade performance and non-toxicity • ISO 9001 and GMP certified manufacturing • Traceable batch documentation |
Processing & Handling
- Mix two-part liquid system at recommended ratio
- Injection mold at 160–200°C; ensure clean, dry molds
- Use accurate metering and mixing for dimensional consistency
- Design vents/runners to avoid air entrapment
Packaging & Storage
- Supplied in cartridges, pails, or bulk drums
- Store sealed below 25°C, away from sunlight and moisture
- Shelf life: 12 months; rotate stock FIFO
- Keep containers closed to prevent contamination or premature curing
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