Welcome to Supex
Welcome to Supex
Silicone potting compound is a high-performance, flowable RTV sealant designed to encapsulate and protect electronic components from moisture, heat, vibration, and environmental stress. It cures into a tough, flexible silicone rubber with excellent electrical insulation and high-temperature resistance—ideal for potting PCBs, LEDs, sensors, and automotive or industrial electronics. With strong multi-surface adhesion and long-term durability, it ensures reliable performance even in demanding conditions.
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100% Authentic products
25+ Years of expertise
Pan-India delivery
Supex 569FL is a high-performance flowable RTV silicone sealant designed for potting, encapsulation, sealing and electrical insulation. Its low-viscosity, self-leveling consistency allows it to flow into gaps and complex spaces, helping protect electronic components from moisture, vibration, dust and environmental stress.
This one-part, moisture-curing silicone cures at room temperature to form a flexible silicone rubber with excellent insulation properties and long-term durability. Supex 569FL is suitable for PCB potting, LED assemblies, sensors, cable connectors and industrial electronic components.
Looking for a reliable flowable RTV silicone potting compound? Explore Supex 569FL technical specifications, applications and packaging options, or enquire for product pricing and technical support.
Supex 569FL Flowable RTV Silicone Sealant provides reliable protection for electronic components. Its easy-flowing formula, flexible curing, and excellent insulation properties make it suitable for potting, sealing, and protecting sensitive electronics.
| Benefit | What It Means |
|---|---|
| Easy Flow & Self-Leveling | Flows easily into gaps and around components for uniform coverage. |
| Excellent Electrical Insulation | Helps protect electronic components and circuit boards from electrical leakage. |
| Moisture Protection | Forms a waterproof protective layer after curing to help prevent moisture damage. |
| Flexible After Curing | Remains flexible and helps absorb shocks and vibrations. |
| High-Temperature Resistance | Withstands temperatures up to 320°C for short-term or intermittent exposure. |
| Strong Adhesion | Bonds well to metals, glass, plastics, and ceramics, depending on the surface. |
| Fast Skin Formation | Forms a surface skin in approximately 10–15 minutes. |
| Easy Application | One-part silicone that requires no mixing and cures at room temperature. |
| Water & Oil Resistance | Provides resistance to water and oil after curing. |
| Low Odor & Low VOC | Offers a low-odor formulation with low volatile organic compound content. |
| Multiple Applications | Suitable for PCB potting, LED assemblies, sensors, connectors, and electronic components. |
Supex 569FL Flowable RTV Silicone Sealant is designed for potting, sealing, and protecting electronic components. Its low-viscosity, self-leveling formula allows it to flow into gaps and around components, providing reliable insulation and environmental protection.
| Application | How Supex 569FL Helps |
|---|---|
| PCB Potting | Protects printed circuit boards (PCBs) from moisture, dust, vibration, and environmental exposure. |
| LED Encapsulation | Seals and protects LED assemblies while providing electrical insulation. |
| Sensor Protection | Helps protect sensitive sensors from moisture, vibration, and external contaminants. |
| Electronic Component Potting | Fills gaps around electronic components to provide insulation and mechanical protection. |
| Cable & Connector Sealing | Seals electrical connections against moisture and environmental exposure. |
| Power Supply Protection | Helps insulate and protect internal components in power supplies and electronic modules. |
| Automotive Electronics | Suitable for sealing and protecting electronic assemblies exposed to vibration and demanding environments. |
| Industrial Electronics | Provides insulation and protective sealing for electronic equipment used in industrial applications. |
| Electrical Insulation | Creates a flexible insulating layer around suitable electrical components and assemblies. |
| Electronic Module Encapsulation | Encapsulates selected electronic assemblies to help improve protection and durability. |
| Property | Specification |
|---|---|
| Chemistry | Oxime-based, one-part moisture-curing RTV silicone |
| Cure System | Neutral / oxime cure at room temperature |
| Viscosity | Flowable, low-viscosity, self-leveling |
| Specific Gravity | 1.2 (Gardner Cup) |
| Colors | White, black, gray; custom colors available on request |
| Tack-Free Time | ≤ 35 minutes |
| Skin Time | 10–15 minutes |
| Hardness | 40 ± 5 Shore A |
| Elongation at Break | ≥ 150% |
| Tensile Strength | ≥ 1.5 MPa |
| Curing Conditions | 72 hours at 25°C / 50% RH for mechanical properties |
| Temperature Resistance | Up to 320°C intermittently / short-term |
| Shelf Life | More than 360 days (>12 months), when stored in a cool, dry place |
| Water Resistance | Waterproof after curing |
| Oil Resistance | Oil-resistant after curing |
| Electrical Properties | Excellent electrical / dielectric insulation |
| Flexibility | Flexible cured rubber for shock and vibration absorption |
| Adhesion | Strong adhesion to metals, glass, plastics and ceramics; often primerless |
| Odor | Low odor |
| VOC | Low VOC |
Preparation matters for best results. Clean surfaces thoroughly. Remove dust, oil, and contaminants. Apply the flowable rtv sealant quickly once exposed to air. Assemble parts within minutes. Full curing develops in 24 hours.
Excess uncured material wipes away easily. After curing, trim carefully with a blade. No special equipment needed. Cartridge or bulk packaging suits various needs.
Flowable RTV silicone and standard RTV silicone both cure at room temperature to form flexible silicone rubber. The main difference is their consistency and how they are applied. Flowable RTV is designed to flow and self-level, while standard RTV is generally thicker and better suited for surface sealing.
| Feature | Flowable RTV Silicone | Standard RTV Silicone |
|---|---|---|
| Consistency | Thin, liquid-like, and flowable | Thick paste-like consistency |
| Application | Ideal for pouring, dispensing, potting, and encapsulation | Ideal for bonding, sealing, and gap filling |
| Flow Properties | Flows easily into gaps and around components | Stays in place after application |
| Self-Leveling | Excellent self-leveling properties | Generally limited self-leveling |
| Coverage | Provides uniform coverage over suitable assemblies | Suitable for targeted sealing and bonding |
| PCB Protection | Well suited for PCB potting and encapsulation | More suitable for edge sealing and localized protection |
| Component Protection | Encapsulates components and fills surrounding spaces | Seals joints, edges, and component interfaces |
| Application Method | Pouring, dispensing, or controlled filling | Manual application, cartridge dispensing, or bead application |
| Typical Uses | PCB potting, LED encapsulation, sensor protection, electronic module encapsulation | Gasket sealing, bonding, joint sealing, and general-purpose sealing |
Supex 569FL Flowable RTV Silicone Sealant is an excellent choice for electronic potting, encapsulation, and insulation applications where easy flow and self-leveling are important.
Flowable RTV Silicone Sealant is a liquid-like silicone that cures at room temperature when exposed to moisture. It flows easily into gaps and around components, making it ideal for potting, encapsulation, sealing, and electrical insulation.
Supex 569FL is used for PCB potting, LED encapsulation, sensor protection, electronic component sealing, cable connector protection, and electrical insulation.
Yes, Supex 569FL is suitable for PCB potting and electronic encapsulation. Its flowable, self-leveling consistency helps cover components and fill gaps, providing protection against moisture, vibration, and environmental exposure.
Flowable RTV silicone has a low-viscosity consistency that allows it to flow and self-level around components. Standard RTV silicone is generally thicker and is commonly used for bonding, joint sealing, and gap filling.
Supex 569FL typically forms a surface skin within 10–15 minutes and becomes tack-free within 35 minutes. Full curing depends on application thickness, temperature, and humidity.
Yes, Supex 569FL provides excellent electrical insulation and is suitable for protecting electronic components and electrical assemblies.
Supex 569FL can withstand temperatures up to 320°C for short-term or intermittent exposure. The maximum continuous operating temperature should be confirmed with the technical data sheet.
Yes, after curing, Supex 569FL forms a waterproof silicone rubber layer that helps protect electronic components from moisture and water exposure.
Supex 569FL adheres to materials such as metals, glass, plastics, and ceramics. Adhesion depends on the substrate, surface preparation, and compatibility.
Yes, Supex 569FL is available in white, black, and gray. Custom colors may also be available upon request.
No, Supex 569FL is a one-part RTV silicone sealant. It does not require mixing and can be applied directly from its packaging.
You can contact Supex for product availability, pricing, packaging options, and technical assistance for Supex 569FL Flowable RTV Silicone Sealant.
Electronics
Potting and encapsulating circuit boards, connectors, sensors, and other sensitive components
Provides dielectric insulation and protection against moisture and vibration
Automotive
Sealing gaps and joints in engines and vehicle body components
Suitable for formed-in-place (FIP) gaskets in valve covers, rocker covers, oil pans, water pumps, and end seals
Construction
Filling small gaps and joints in glass, metal, and other structural materials
General sealing for indoor and outdoor applications
Industrial Equipment
Bonding and sealing components exposed to heat, chemicals, or harsh environmental conditions
Assembly and repair of industrial furnaces, ovens, boilers, exhaust stacks, and high-temperature ducting
Aerospace
Lightweight, durable sealing for precision assemblies and electrical parts
DIY & Maintenance
Ideal for craftwork, appliance repair, and general household sealing tasks
Additional Uses
Used as a potting compound in electronics manufacturing
Effective in sealing heating elements in electrical appliances
Supex 569FL delivers reliable performance across high-temperature, high-vibration, and high-precision environments, making it suitable for both industrial and consumer applications.
Ensure all bonding surfaces are clean, dry, and free from dust, oil, and contaminants to achieve optimal adhesion.
Once exposed to air, the silicone begins moisture curing immediately, so assemble or mate the parts within a few minutes of dispensing.
Full performance and final properties develop after 24 hours of curing.
Wipe away any excess uncured material using a non-polar cleaning agent.
After curing, excess silicone can be removed carefully with a knife or single-edge razor blade.
| Performance | Indicator |
|---|---|
| Uncured Characteristics of Silicone Sealant @ 25°C and 50% RH | |
| Chemical Type | Oxime |
| Shelf Life | > 360 Days |
| Specific Gravity (Gardner Cup) | 1.2 |
| Color | White / Black / Gray etc. |
| Tack-Free Time | ≤ 35 min |
| Cured After 72 Hours at 25°C and 50% RH | |
| Tensile Strength | ≥ 1.5 MPa |
| Elongation | ≥ 150% |
| Shore A | 40 ± 5 |
The above data is tested at 25°C and 50% relative humidity.
Standard colors are white, black, and gray. Other colors can be provided according to customer requirements.
| Weight | 15 kg |
|---|---|
| Dimensions | 42 × 20 × 24 cm |
| Weight | 15kg |
| Dimensions | 42 × 20 × 24 cm |
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