Self-Adhesive LSR Silicone Rubber
Silico® Self-Adhesive LSR is a two-component, platinum-cured silicone designed for direct bonding to plastics and metals without primers, enabling efficient two-shot molding for high-volume production.
Product Overview
Key Technical Specifications
| Property | Value |
|---|---|
| Appearance | Translucent/Custom Colors |
| Hardness (Shore A) | 30 A |
| Tensile Strength | ≥ 6 MPa |
| Elongation at Break | ≈ 740% |
| Tear Strength | ≥ 25 kN/m |
| Compression Set (22h @ 175 °C) | ≤ 15% |
| Cure Time @ 150 °C | 60–90 seconds |
| Mixing Ratio (A:B) | 1:1 |
| Processing Method | Liquid Injection Molding (LIM) |
| Working Temperature | –100 °C to +200 °C |
- Custom hardness grades (20A–60A) available on request
Key Features & Benefits
✅ Self-Bonding Without Primer
Forms permanent adhesion to thermoplastics and metals during molding
Eliminates the need for primer, plasma, or chemical treatment
✅ Fast Cure Cycle
Rapid vulcanization within 60–120 seconds at 110–150 °C
Ideal for short-cycle injection molding and high-throughput applications
✅ Excellent Mechanical Properties
High tear resistance, tensile strength, and elongation (up to 700%)
Outstanding flexibility and resilience, even under dynamic stress
✅ Wide Temperature & Chemical Resistance
Operating range: –100 °C to +200 °C
Resists UV, ozone, acids, solvents, and weathering
✅ Superior Electrical Insulation
Stable dielectric properties across varying environmental conditions
Suitable for insulation and EMI protection in electronics
✅ Biocompatibility & Food Safety
Select grades meet USP Class VI, ISO 10993, and FDA 21 CFR 177.2600 compliance
Suitable for medical device and food-contact applications
Applications
Silico® Self-Adhesive LSR is ideal for applications where durable bonding to plastic or metal is required without the use of primers or adhesives:
🔹 Automotive
Sensor housing seals
Connectors and grommets
Multi-material vibration dampers
🔹 Medical Devices
Breathing masks, valves, and seals
Handheld surgical instrument grips
Wearable diagnostic interfaces
🔹 Consumer Electronics
Keypads and overmolded buttons
Hybrid casing and shock-absorbing elements
🔹 Industrial Components
Overmolded switches and housings
Wire insulation with embedded sealing
Hybrid gaskets for electronics
Why Choose Silico® Self-Adhesive LSR?
| Advantage | Description |
|---|---|
| No Primer Required | Reduces production time and VOC emissions |
| Short Cycle Time | Compatible with fast LIM production for high output |
| Process-Friendly | Excellent flowability and mold release characteristics |
| Long-Term Bond Durability | Withstands temperature, humidity, and mechanical stress over time |
| Eco-Safe & Compliant | Free from solvents and halogens; meets international safety regulations |
Processing Guidelines
Mixing: 1:1 ratio (Part A and B) using static or dynamic mixing systems
Injection: Use standard liquid injection molding equipment
Curing: Recommended cure range is 110–150 °C for 60–120 seconds
Storage: Store unopened packs at ≤25 °C; shelf life up to 12 months
Silico® Self-Adhesive LSR offers a next-generation solution for primerless, high-strength bonding in modern injection molding processes. Whether you’re manufacturing medical-grade wearables, automotive hybrid seals, or overmolded electronic components, Silico® ensures superior efficiency, safety, and long-term reliability — with a process-ready formulation designed for industrial scalability.
📩 Contact us today for technical data sheets (TDS), safety data sheets (SDS), samples, or custom formulation support.
Jessica G.
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