Non-corrosive, silicone-based formulation safe for sensitive electronic components and metals.
Thixotropic gel consistency provides excellent gap-filling and stays in place without slumping or migration.
Wide operating temperature range from −40 °C to +200 °C for reliable performance in demanding environments.
High dielectric strength (>20 kV/mm) and low electrical conductivity ensure effective electrical insulation.
UL 94 V-0 rated for flame resistance, supporting compliance with stringent safety standards.
Insulation and protection of high-voltage battery module connections in electric vehicles (EVs).
Dielectric filling for power electronics enclosures, including inverters, converters, and onboard chargers.
Thermal interface and electrical isolation in LED lighting drivers and industrial power supplies.
Moisture and contamination barrier for outdoor telecom junction boxes and renewable energy control units.
| Chemical Type | Dimethyl silicone polymer-based dielectric gel |
| Product Form | Two-component kit (Part A + Part B), supplied in syringe cartridges |
| Appearance | Opaque white to off-white viscous gel |
| Primary Applications | Electrical insulation, gap filling, moisture sealing, and component protection |
| Key Features | Non-slumping, non-corrosive, UL 94 V-0 rated, thermally stable |
| Benefits | Reduces arcing risk, extends component life, simplifies assembly, eliminates need for mechanical fasteners |
| Cure Mechanism | Room-temperature condensation cure (acetoxy-type) |
Q1: What is the primary function of the DOWSIL 3-4154 Dielectric Gel Kit?
A: The DOWSIL 3-4154 Dielectric Gel Kit is designed to provide long-term electrical insulation and environmental protection for high-voltage components, such as connectors, sensors, and power electronics. It forms a soft, non-flowing, conformal gel that resists thermal cycling, vibration, and moisture ingress without outgassing or curing shrinkage.
Q2: Is this product ready-to-use, or does it require mixing before application?
A: The DOWSIL 3-4154 Dielectric Gel Kit is supplied as a two-component system (Part A and Part B) that must be mixed in the specified ratio prior to use. Mixing initiates a room-temperature vulcanization process, resulting in a stable, non-tacky dielectric gel with no need for heat cure.
Q3: Can this gel be used in automotive under-hood applications?
A: Yes — DOWSIL 3-4154 is formulated to withstand continuous exposure to elevated temperatures, thermal shock, and common automotive fluids. It maintains dielectric integrity and mechanical stability across typical under-hood operating conditions, making it suitable for EV battery interconnects, power inverters, and sensor assemblies.
Q4: How does this dielectric gel differ from conventional silicone greases or RTV sealants?
A: Unlike traditional greases, DOWSIL 3-4154 cures into a dimensionally stable, non-migrating gel with superior adhesion and long-term retention on vertical and inverted surfaces. Compared to RTV sealants, it offers lower modulus, higher elongation, and no rigid crosslinking — enabling stress relief at interfaces without cracking or delamination during thermal cycling.
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E-mail: wangxingqiang@ericwchem.com
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