Food-Grade RTV Silicone Rubber
Silico® Food-Grade RTV Silicone Rubber is a high-purity elastomer for direct food contact. It meets FDA, NSF, and EU standards, offering excellent heat resistance, flexibility, and durability for food equipment and molds.
Product Overview
Silico® Food-Grade RTV Silicone Rubber is a high-purity, room-temperature vulcanizing elastomer specially formulated for direct food contact applications. Compliant with international food safety standards such as FDA CFR 177.2600, NSF 51/61, and EU Regulation 1935/2004, this silicone rubber offers outstanding thermal resistance, flexibility, and long-term durability. It is ideal for food processing equipment, kitchen appliances, and silicone mold making where hygiene and performance are critical.
Key Technical Specifications
| Property | Typical Value | Test Method |
|---|---|---|
| Cure Type | Single-Component / Neutral Cure (RTV-1) or Two-Component (RTV-2) | — |
| Operating Temperature | –60 °C to +200 °C (up to +300 °C short-term) | — |
| Shore A Hardness | 20 – 60 | ASTM D2240 |
| Tensile Strength | 1.5 – 4.0 MPa | ASTM D412 |
| Elongation at Break | 200% – 500% | ASTM D412 |
| Tear Strength | ≥10 kN/m | ASTM D624 |
| Linear Shrinkage | ≤0.5% | ASTM D2566 |
| Dielectric Strength | ≥18 kV/mm | ASTM D149 |
- All properties are typical values and may be adjusted based on formulation requirements.
Key Features & Technical Benefits
Food-Contact Approved
Certified for food safety under FDA, NSF, and EU directives, ensuring compliance for direct or indirect food contact applications.Wide Service Temperature
Reliable performance from –60 °C to +200 °C under continuous use; special formulations withstand up to +300 °C short-term.Neutral Cure & Non-Corrosive
Uses an oxime or alkoxy-based neutral curing system that does not release acetic acid—ideal for metals and sensitive substrates.Superior Weather & Chemical Resistance
Excellent resistance to water, steam, oils, greases, UV, and ozone, maintaining flexibility and hygiene in wet or heated environments.Excellent Mechanical Properties
Balanced hardness, high tear strength, and strong elongation allow for high-performance gaskets, seals, and food-grade molds.
Typical Applications
Food Processing Equipment
Used in sealing valves, filling lines, pipe connectors, and pump gaskets in beverage and food manufacturing systems.Silicone Molds for Food Production
Ideal for chocolate, fondant, candy, and pastry molds—non-stick, odorless, and food-safe.Water Dispensing and Filtration Systems
Certified for potable water contact in dispensers, valves, and filtration components.Kitchen & Commercial Appliances
Seals, tubing, and cushioning parts in ovens, steamers, coffee machines, and dishwashers.Food-Grade Adhesives & Sealants
Bonding and sealing food containers, packaging machines, and sanitary fittings.
Why Choose Silico® Food-Grade RTV Silicone Rubber?
✅ Fully compliant with FDA, NSF, and EU food contact regulations
✅ Wide thermal range for both refrigerated and high-temperature environments
✅ Excellent hygiene, non-toxic, and odor-free formulation
✅ Non-corrosive neutral cure—safe on metal, glass, ceramics, and plastic
✅ Suitable for static and dynamic food-grade sealing applications
Silico® Food-Grade RTV Silicone Rubber is your trusted solution for hygienic, heat-resistant, and regulation-compliant sealing in food-related applications. Available in both RTV-1 and RTV-2 formulations, customizable to meet your processing and certification needs.
📩 Contact us today for technical data sheets (TDS), safety data sheets (SDS), samples, or custom formulation support.
Jessica G.
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