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High-performance, one-component, room-temperature vulcanizing (RTV) silicone elastomer with excellent adhesion to diverse substrates including metals, glass, and plastics.
Low modulus formulation provides superior flexibility and stress relief for bonded assemblies subjected to thermal cycling or mechanical vibration.
Outstanding resistance to moisture, ozone, UV radiation, and extreme temperatures ranging from –55 °C to +200 °C long-term.
Non-corrosive, acetoxy-cure chemistry with low shrinkage and minimal by-product evolution during cure.
Meets UL 94 HB flammability rating and complies with RoHS Directive 2011/65/EU for restricted substances.
Sealing and bonding of electronic enclosures, power supplies, and LED lighting housings.
Thermal interface and potting in automotive sensors, control units, and under-hood electronics.
Gasketing and vibration-damping mounts for industrial automation equipment and HVAC components.
Weatherproofing and structural sealing in architectural glazing and solar panel frame assemblies.
General-purpose elastomeric sealant for aerospace ground support equipment and avionics housings.
| Chemical Type | Acetoxy-cure, polydimethylsiloxane (PDMS)-based RTV silicone |
| Product Form | Paste, thixotropic, ready-to-use in cartridge or bulk packaging |
| Appearance | Opaque white or translucent beige, uniform paste without visible particles |
| Shore A Hardness (7 days @ 23 °C / 50% RH) | 25–30 |
| Tensile Strength (ASTM D412) | 3.5–4.2 MPa |
| Elongation at Break (ASTM D412) | 450–550% |
| Cure Speed (Surface tack-free time @ 23 °C / 50% RH) | 15–25 minutes |
| Operating Temperature Range | –55 °C to +200 °C (continuous); short-term up to +250 °C |
Q1: What is the primary curing mechanism of DOWSIL SILASCON RTV 8000 Silicone?
A: It is a room-temperature vulcanizing (RTV) silicone that cures via moisture-cure condensation chemistry, forming a durable elastomeric seal or encapsulant upon exposure to ambient humidity.
Q2: Is this product suitable for high-voltage electrical insulation applications?
A: Yes — DOWSIL SILASCON RTV 8000 Silicone offers excellent dielectric strength and long-term electrical stability, making it well-suited for potting, coating, and insulating components in power electronics and renewable energy systems.
Q3: How does temperature affect the cure speed and final properties?
A: Cure rate increases with higher temperature and relative humidity; however, the fully cured material maintains consistent mechanical and thermal performance across a broad operating range, typically from –55 °C to +200 °C.
Q4: Can it be used for bonding dissimilar substrates such as metal, plastic, and glass?
A: Yes — it provides strong adhesion to many common industrial substrates without requiring primers, though surface cleanliness and compatibility testing are recommended for critical assemblies.
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