Heatecx Limited
Our RTV (Room Temperature Vulcanizing) Silicone Sealant is a professional-grade solution engineered for sealing, insulating, and protecting electric heaters, electronic components, and electromechanical equipment. This single-component silicone rubber features a distinctive red color and high pre-cure viscosity, ensuring a thick, non-slump consistency for precise application.
Formulated as a deoxime-based silicone sealant, this product cures at room temperature upon contact with atmospheric moisture, creating a durable and flexible seal. It is an eco-friendly, solvent-free, and non-corrosive option for most materials.
With the ability to withstand extreme temperatures ranging from -60°C to +300°C, and boasting exceptional dielectric strength and arc resistance, it is the ideal high-temperature sealant for critical industrial applications. Its performance is comparable to industry-leading adhesives like the Japanese 441 glue, offering superior adhesion to metallic surfaces.
The RTV silicone sealant is indispensable for environments requiring robust sealing and thermal protection:
• Heating Elements Sealing: The most effective choice for sealing tubular heating elements (immersion and air heating). It prevents moisture ingress in low-to-medium temperature resistances, such as those used in aluminum and copper piping.
• Electronic Components: Ideal for encapsulating sensitive electronics to protect against moisture, dust, and vibration, thereby extending device lifespan.
• Electromechanical Equipment: Ensures watertightness and insulation for connections and housings, enhancing operational safety.
• Kitchen and Bath Appliances: Perfect for high-heat environments like ovens, stoves, and water heaters where airtight sealing is mandatory.
• Steam Irons: Specifically designed to resist steam and high temperatures, ensuring safe and efficient operation.
• Semiconductors: Provides a stable environmental barrier for semiconductor materials.
Note: While highly effective for low-to-medium temperature applications, this sealant is not recommended for high-temperature magnesium powder resistances, as it may degrade electrical performance under those specific extreme conditions over time.
|
Feature |
Benefit |
|
Single-Component Formula |
Ready to use directly from the tube; no mixing required. |
|
Room Temperature Vulcanizing |
Cures via ambient moisture with a tack-free time of 5–30 minutes. |
|
High Viscosity (80,000 Pa·s) |
Thick consistency prevents running or dripping, allowing for precise application on tube mouths. |
|
Extreme Temperature Range |
Operates reliably from -60°C to +300°C. |
|
Superior Dielectric Properties |
High insulation resistance and arc protection for electrical safety. |
|
Robust Metal Adhesion |
Bonds strongly to heating element tubes and other metallic surfaces. |
|
Eco-Friendly & Safe |
Solvent-free and non-polluting formulation. |
Physical and Electrical Properties
|
Property |
Unit |
Pre-Cure Value |
Post-Cure Value |
|
Viscosity |
Pa·s |
80,000 |
N/A |
|
Tack-Free Time |
min |
5–30 |
N/A |
|
Tensile Strength |
Mpa |
N/A |
≥ 11 |
|
Elongation |
% |
N/A |
≥ 140 |
|
Shore A Hardness |
A |
N/A |
≥ 30 |
|
Dielectric Strength |
KV/mm |
N/A |
≥ 15 |
|
Volume Resistivity |
Ω·cm |
N/A |
≥ 4.0 × 10¹⁵ |
|
Thermal Conductivity |
W/(m·K) |
N/A |
≥ 0.8 |
Packaging and Storage
• Net Content: 45g per tube (approx. 56g total unit weight).
• Packaging: 200 units per box.
• Shelf Life: 8 months when stored in a cool, ventilated area (~25°C).
• Color: Red.
1 Surface Preparation: Ensure surfaces are clean, dry, and free of grease. For heating elements, dehumidify the tube mouth before application.
2 Application: Apply directly from the tube. For deep sealing, remove 2–4mm of magnesium powder to insert an insulator before applying the sealant.
3 Layer Thickness: Keep the application thickness under 5mm to ensure efficient curing.
4 Curing: Curing begins immediately upon exposure to air. Full cure time depends on thickness and humidity.
5 Post-Use Care: Tighten the cap immediately after use. If the nozzle clogs, simply remove the cured plug before the next application.
Yes. Once cured, it forms a hydrophobic, elastic barrier that effectively blocks water and humidity. This is vital for preventing short circuits and insulation degradation in heating elements and electronic devices.
