Two-component insulating gel RAYTECH GEL-GUM-500 — 500 ml electrical sealing and protection compound

RAYTECH GEL-GUM-500 is a two-component insulating gel supplied in a 500 ml kit designed for electrical sealing, insulation and protection of connectors, joints and electronic assemblies. The compound cures to a flexible, dielectric coating that adheres to a variety of substrates and provides long-term resistance to moisture, dust and common contaminants. It is formulated for applications that require durable electrical insulation combined with mechanical protection and the ability to accommodate slight movement or vibration without cracking.

Advantages

The product provides a flexible, non-hardening protective layer that maintains dielectric properties and prevents water ingress and corrosion. Its two-component formulation ensures consistent mixing and reliable curing, producing a uniform gel that conforms to irregular shapes and fills voids. The compound is designed to be chemically stable, offering resistance to common environmental contaminants while remaining soft enough to absorb mechanical stress at connector interfaces.

Suitable for

• Cable joints and splices in outdoor and indoor installations
• Terminal blocks, sensor housings and small electronic assemblies
• Electrical connectors exposed to moisture, dust or vibration
• Temporary or semi-permanent sealing where later re-entry is required

Key specifications

• Form: two-component insulating gel supplied as a 500 ml kit
• Curing behaviour: forms a flexible, dielectric coating after mixing
• Protection: moisture and contaminant resistant, prevents corrosion and ingress
• Mechanical properties: flexible, able to accommodate slight movement and vibration
• Application surfaces: adheres to plastics, metals and common cable insulation materials

How to use

Prepare the surfaces by cleaning and drying connectors, cable jackets and housings. Mix the two components according to the kit instructions to achieve a homogeneous gel, then apply the compound to fully cover the target area and fill gaps or voids. Allow the material to cure under recommended temperature conditions until the gel achieves its designed flexibility and dielectric performance. For re-entry, portions of the gel can be removed as required, and additional material can be applied to re-seal.

Usage recommendations

Store components in original packaging at recommended temperatures and mix only the quantity needed for the immediate application to avoid waste. Use appropriate personal protective equipment during mixing and application. Verify compatibility with paints, sealants or other adhesives before combining. For critical electrical applications, confirm curing and dielectric performance in situ prior to full commissioning.