Silico® RTV Silicone Rubber

Silico® RTV silicone rubber is a high-performance, room-temperature vulcanizing elastomer designed for reliable sealing, bonding, molding, and insulation applications. Available in both single-component and two-component systems, Silico® RTV offers excellent thermal stability, weather resistance, and electrical insulation. Custom formulations—such as high-temperature, food-grade, and conductive variants—are available to meet the specific needs of industries including electronics, automotive, aerospace, construction, and healthcare.

With outstanding durability and process flexibility, Silico® RTV silicone rubber ensures consistent performance under demanding conditions, making it the preferred choice for engineers and manufacturers worldwide.

RTV Silicone Rubber Products

Single-Component RTV Silicone Rubber

Silico® RTV-1 Silicone Rubber: One-part, moisture-curing sealant with strong adhesion, wide temp range (–60 °C to 250 °C), low VOC, and excellent electrical insulation.

Two-Component (RTV-2) Silicone Rubber

Silico® RTV-2: Two-part silicone rubber with high strength, low shrinkage, –80 °C to 250 °C resistance, platinum/tin cure options, and precise mold-making performance.

High-Temperature RTV Silicone Rubber

High-Temp RTV Silicone: Cures at room temp, withstands –60 °C to 300 °C, offers strong adhesion, thermal stability, and chemical resistance for extreme environments.

Food-Grade RTV Silicone Rubber

Silico® Food-Grade RTV Silicone: FDA/NSF/EU compliant, –60 °C to 200 °C use, odorless, non-corrosive, flexible, and safe for direct food contact in seals, molds, and appliances.

Conductive RTV Silicone Rubber

Silico® Conductive RTV Silicone: Electrically conductive, RTV-1/RTV-2 cure, –60 °C to 200 °C use, ideal for EMI/RFI shielding, ESD protection, and sealing in electronics and aerospace.

Types of RTV Silicone Rubber Offered by Silico®

Product Type	Key Features	Typical Applications
Single-Component RTV	Room-temperature curing, excellent weather resistance and electrical insulation	Electronic encapsulation, automotive seals, construction sealing
Two-Component RTV	Adjustable curing time and hardness, high strength and elasticity	Mold making, aerospace, medical devices
High-Temperature RTV	Resistant to continuous heat up to ≥300°C, excellent thermal stability	Engine seals, high-temp electrical equipment
Food-Grade RTV	Meets food safety standards, non-toxic, high heat resistance	Food processing equipment, medical devices, baby products
Conductive RTV	Electromagnetic shielding, good mechanical and environmental resistance	Electronic sealing, EMI/RFI shielding, protective materials

Product Advantages

Room-Temperature Curing
No heat required; easy to apply in various industrial settings.
Excellent Thermal Stability
Maintains elasticity from –60°C to +250°C (up to 300°C for special grades).
Superior Weather & UV Resistance
Long-term durability in outdoor, marine, and high-humidity environments.
Outstanding Electrical Insulation
Ideal for electronics and high-voltage component sealing.
Custom Formulations Available
Options include flame-retardant, food-grade, oil-resistant, and electrically conductive grades.
Strong Adhesion
Bonds well to glass, metal, ceramics, plastics, and other substrates without primers (RTV-1 types).

Typical Applications

Industry	Application Examples
Electronics	Potting, conformal coating, component encapsulation
Automotive	Engine gaskets, headlamp seals, EGR & emission system seals
Aerospace	Fuel-resistant gaskets, wire insulation, vibration dampers
Construction	Expansion joint sealants, curtain wall glazing
Medical & Food	Food-grade tubing, equipment gaskets, silicone molds
Mold Making	Reusable molds for prototyping, casting, and sculpture

HTV Silicone Rubber FAQs

Q1: What is the difference between RTV-1 and RTV-2 silicone rubber?

A: RTV-1 is a single-component system that cures upon exposure to moisture in the air. RTV-2 is a two-component system that cures through a chemical reaction after mixing, offering faster curing and greater control over mechanical properties.

Q2: Can Silico® RTV be used for high-temperature applications?

A: Yes. Special high-temp grades of Silico® RTV can withstand continuous use up to 300°C, suitable for engines, ovens, and high-heat environments.

Q3: Is food-grade Silico® RTV silicone certified?

A: Yes. Our food-grade RTV silicones meet FDA and EU food safety standards and are suitable for direct contact with food or medical devices.

Q4: How long does RTV silicone take to cure?

A: RTV-1 typically cures in 24 hours (depending on thickness and humidity). RTV-2 can be adjusted to cure within minutes to hours based on formulation.

Q5: What surfaces can Silico® RTV adhere to?

A: It adheres well to glass, metal, ceramics, and many plastics. Surface preparation may enhance bond strength.

Q6: Can RTV silicone rubber be painted or overmolded?

A: Cured RTV silicone is typically non-paintable, but can be overmolded with compatible silicones. For coatings or printing, surface treatment may be required.