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Liquid Silicone Resin
| Product Name: | Liquid Silicone Resin (Addition-Cure, Two-Part) |
| Product Category: | Silicone Resin – Product |
| Brand: | Silico® |
| Form: | Flowable, translucent or pigmented liquid elastomer |
| Curing System: | Platinum-catalyzed addition cure |
| Viscosity (A/B @25 °C): | 25,000–35,000 mPa·s |
| Pot Life (25 °C): | 60–120 min |
| Mixing Ratio (A:B): | 1:1 by weight or volume |
Liquid Silicone Resin Describe
Liquid silicone resin (LSR) is a high-performance, two-part thermosetting polymer system widely used in industries requiring advanced thermal, chemical, and dielectric stability. Its low shrinkage, excellent flowability, and customizable hardness make it ideal for mold making, electronic encapsulation, food-grade casting, and high-temperature adhesives.
Technical Specifications
| Parameter | Typical Value | Test Method |
|---|---|---|
| Viscosity (A/B @25 °C) | 25,000–35,000 mPa·s | ISO 3219 |
| Mixing Ratio (A:B) | 1:1 by weight or volume | – |
| Pot Life (25 °C) | 60–120 min | Internal |
| Curing Time (70 °C) | 20–30 min | ISO 16738 |
| Shore Hardness | A40–A60 | ASTM D2240 |
| Tensile Strength | 2.5–4.5 MPa | ASTM D412 |
| Elongation at Break | ≥300% | ASTM D412 |
| Dielectric Strength | ≥20 kV/mm | ASTM D149 |
| Volume Resistivity | >10¹³ Ω·cm | ASTM D257 |
| Thermal Conductivity (filled) | 0.8 W/m·K | ASTM E1530 |
| Working Temp Range | –60 °C to +200 °C (short-term +250 °C) | ISO 815 |
| Shrinkage | <0.2% | ISO 4823 |
| Appearance | Translucent, low-yellowing | Visual |
Product Features
Low shrinkage, high dimensional stability
Excellent thermal and electrical insulation properties
Suitable for complex mold making, electronic potting, food-grade casting, and heat-resistant bonding
Compatible with vacuum degassing and pressure curing
Recommended Applications
Liquid silicone resin for mold making: prototypes, dental impressions, model duplication
Clear silicone resin for electronic potting: sensors, PCBs, transformers
Food grade silicone resin for casting: chocolate, baking molds, cosmetic molds
High temperature silicone resin adhesive: automotive gasketing, industrial bonding
UV-resistant silicone resin: outdoor electrical modules, LED sealing
Compliance & Certifications
RoHS / REACH compliant
Available in FDA 21 CFR 177.2600 food-grade versions
ISO 9001:2015 production standards
UL94 V-0 flame retardant grades available upon request
Request TDS / MSDS / Quotation
Silico® supports OEM and custom formulation services.
Contact us to receive a detailed Technical Data Sheet, Safety Data Sheet, or sample evaluation.
🌐 Website: silicorex.com
📧 Email: sales@silicorex.com
Packaging Specifications
Jessica G.
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Why Choose Silico® Liquid Silicone Resin
Silico® offers premium-grade liquid silicone resins designed for precision, durability, and safety. Our formulations deliver excellent thermal stability (–60 °C to +250 °C), outstanding electrical insulation, and minimal shrinkage—ideal for mold making, electronic potting, and food-grade casting. With consistent 1:1 mix ratios, smooth flow, and fast curing options, Silico® ensures easy processing and superior mold detail replication. All products are ISO 9001 certified, REACH/RoHS compliant, and available in FDA food-grade variants. Whether you’re working in industrial, medical, or consumer sectors, Silico® delivers proven quality and custom solutions tailored to your needs.
