Supex RTV Silicone Sealant is a high-performance, heat-resistant sealing solution designed for demanding industrial, automotive, and electrical applications. This high temperature RTV silicone sealant provides superior adhesion, flexibility, and long-lasting durability even under extreme thermal conditions.
Engineered for reliability, Supex RTV silicone forms a tough, waterproof seal that withstands heat, vibration, moisture, and chemicals. It is widely used across industries requiring high temperature sealing, gasket formation, and precision bonding.
Whether used in engines, industrial machinery, or electrical systems, this industrial RTV silicone sealant ensures dependable sealing performance.
What is RTV Silicone Sealant?
RTV Silicone Sealant (Room Temperature Vulcanizing silicone) is a type of silicone that cures at room temperature to form a flexible, rubber-like seal. Unlike conventional sealants, RTV silicone maintains flexibility after curing, allowing it to absorb vibration and thermal expansion.
High temperature RTV silicone sealants are specially formulated to withstand elevated temperatures while maintaining strong adhesion and flexibility. These properties make RTV silicone ideal for automotive gasket sealing, industrial equipment maintenance, and electrical insulation.
RTV silicone sealants are commonly used as:
- Gasket makers
- Industrial sealants
- Heat-resistant bonding materials
- Waterproof sealing compounds
Key Features of RTV Silicone Sealant
Supex RTV Silicone Sealant is designed to deliver outstanding performance under harsh conditions.
High Temperature Resistance
Withstands temperatures up to 300°C, making it ideal for engines, furnaces, boilers, and industrial equipment.
Excellent Adhesion
Bonds strongly to materials such as:
- Metal
- Glass
- Ceramics
- Rubber
- Plastics
Waterproof and Weatherproof
Creates a moisture-resistant seal that protects against water penetration, humidity, and environmental exposure.
Flexible and Durable
Maintains elasticity after curing, allowing the seal to resist vibration and movement.
Oil and Chemical Resistance
Suitable for environments exposed to oils, lubricants, and mild chemicals.
Non-Corrosive Formulation
Safe for sensitive components and compatible with various industrial materials.
Applications of RTV Silicone Sealant
Supex RTV sealant is used across multiple industries due to its versatility and durability.
Automotive Applications
Supex RTV is widely used in automotive assembly and maintenance.
Common automotive uses include:
- Valve cover sealing
- Oil pan gasket formation
- Water pump sealing
- Engine block sealing
- Transmission housing sealing
- Thermostat housing sealing
Its high temperature resistance ensures long-lasting performance in demanding engine environments.
Industrial Equipment Applications
Industrial machinery requires reliable sealing solutions capable of handling high temperatures and vibration.
Typical industrial uses include:
- Furnace sealing
- Boiler joints
- Compressor sealing
- Pump assembly
- Industrial gasket replacement
- Heat exchanger sealing
Supex RTV silicone ensures operational safety and prevents leaks in critical systems.
Electrical Applications
Supex RTV provide insulation and protection in electrical environments.
Typical electrical uses include:
- Heating element sealing
- Cable insulation
- Junction box sealing
- Electrical enclosure protection
- Sensor protection
Its non-corrosive formulation protects sensitive components.
Construction and Maintenance Applications
RTV silicone is also used in building and facility maintenance.
Applications include:
- Joint sealing
- Crack filling
- Waterproof sealing
- Equipment installation
- Maintenance repairs
Advantages of High Temperature RTV Silicone Sealant
Choosing a high-performance RTV sealant provides multiple advantages over conventional sealants.
Superior Heat Resistance
Handles extreme temperatures without losing flexibility.
Long Service Life
Provides long-term reliability, reducing maintenance frequency.
Strong Mechanical Performance
Maintains structural integrity under vibration and movement.
Improved Equipment Safety
Prevents leaks, contamination, and equipment damage.
Cost-Effective Maintenance Solution
Reduces downtime and repair costs.
RTV Silicone Sealant vs Standard Silicone Sealant
| Feature | RTV Silicone Sealant | Standard Silicone Sealant |
|---|---|---|
| Temperature Resistance | Up to 300°C | Up to 150–200°C |
| Flexibility | High | Moderate |
| Industrial Use | Yes | Limited |
| Oil Resistance | Excellent | Moderate |
| Automotive Applications | Widely Used | Limited |
| Durability | Long-lasting | Medium |
Technical Specifications
Below are the typical technical characteristics of Supex RTV Sealant.
| Property | Specification |
|---|---|
| Appearance | Smooth Paste |
| Color | Red / Black / Grey (varies) |
| Curing Type | Room Temperature Vulcanizing |
| Skin Formation Time | 5–15 minutes |
| Full Cure Time | 24 hours |
| Temperature Resistance | Up to 300°C |
| Adhesion | Excellent |
| Flexibility | High |
| Water Resistance | Excellent |
(Values may vary depending on grade.)
How to Apply RTV Silicone Sealant
Proper application ensures maximum performance and durability.
Step 1: Surface Preparation
Clean surfaces thoroughly to remove:
- Oil
- Dust
- Grease
- Moisture
Step 2: Apply Sealant
Apply RTV silicone evenly along the required surface or joint.
Step 3: Assemble Components
Join parts immediately after applying sealant.
Step 4: Allow Curing
Allow sufficient curing time before exposing to pressure or heat.
Proper curing ensures strong adhesion and long-lasting sealing.
Why Choose Supex RTV Silicone Sealant?
Supex provides reliable industrial sealing solutions trusted across industries.
Proven Industrial Performance
Designed for demanding applications requiring durability and reliability.
High-Quality Manufacturing Standards
Manufactured using advanced technology and quality-controlled processes.
Wide Range of Applications
Suitable for automotive, industrial, electrical, and maintenance use.
Consistent Product Performance
Reliable results across various operating conditions.
Technical Support Availability
Expert assistance available for product selection and application guidance.
Frequently Asked Questions (FAQs)
What is RTV silicone sealant used for?
RTV sealant is used for sealing automotive components, industrial machinery, electrical equipment, and high-temperature joints.
How long does RTV silicone take to cure?
Most RTV sealants cure fully within 24 hours, depending on thickness and environmental conditions.
Is RTV sealant waterproof?
Yes. RTV silicone forms a waterproof and weather-resistant seal once fully cured.
What temperature can RTV silicone withstand?
High temperature RTV sealants can withstand temperatures up to 300°C, depending on the formulation.
Can RTV silicone be used for engine gaskets?
Yes. RTV sealant is widely used as a gasket maker for engine components such as valve covers and oil pans.