Insulating Gel RAYTECH MONO-GEL – Raytech MONO-GEL electrical insulation and sealing gel

RAYTECH MONO-GEL is a single-component insulating and sealing gel formulated for electrical protection of connections, terminals and sensitive components. Supplied ready to use, this silicone-based gel forms a dielectric, non-hardening barrier that prevents moisture ingress, dust accumulation and corrosion while allowing re-entry for maintenance. The product is intended for coating or filling around wiring joints, PCB components and terminal blocks where long-term environmental sealing is required without permanent encapsulation.

Advantages

The gel provides dielectric insulation and protects metal contacts from oxidation and corrosion. Its single-component, ready-to-use nature eliminates mixing and reduces application time. Remaining soft and non-curing, the gel allows easy access to components for inspection or repair. It is compatible with common insulating materials and adheres well to plastics and metals, offering a flexible protective layer that resists water and dust penetration.

Suitable for (tasks / use cases)

• Sealing and protecting wire splices and crimped terminals
• Coating printed circuit board areas requiring moisture protection
• Protecting connector pins, relay sockets and terminal blocks
• Environmental sealing of sensors and small electronic assemblies

Key specifications

• Form: single-component, non-curing silicone gel
• Function: electrical insulation and environmental sealing
• Dielectric properties: provides reliable insulation for low-voltage electrical joints
• State at application: ready-to-use, paste-like gel
• Temperature tolerance: maintains flexibility over a wide operating temperature range
• Chemical behaviour: resists moisture and dust; prevents corrosion by isolating contacts from environment

How to use

Ensure surfaces are clean, dry and free of loose contaminants before application. Apply the gel directly from the container, coating connectors, terminals or PCB zones to the required thickness to achieve full coverage. For filling cavities or encapsulating joints, press the gel into voids to remove trapped air and ensure continuous contact with surfaces. The gel remains soft after application, so avoid exposure to excessive mechanical abrasion; reapply as necessary after maintenance.

Usage recommendations

For best results, use in well-ventilated areas and store containers at recommended temperatures. Avoid contact with open flames or high-temperature sources. When applying to sensitive electronics, use minimal quantities necessary for coverage to reduce thermal mass changes. Periodically inspect treated connections during routine maintenance to confirm the integrity of the protective layer and reapply if signs of contamination or displacement are detected.