Klear Concepts Dielectric Grease 3.3 oz Tube — Non-Conductive Silicone, Weatherproof Electrical Sealant

Klear Concepts Dielectric Grease is a non-conductive, technician-grade silicone grease in a 3.3 oz tube formulated to seal, lubricate, and protect electrical connections, spark plug boots, and rubber/plastic parts from moisture and corrosion.

This silicone-based dielectric grease is designed for automotive and general electrical use where reliable insulation and environmental protection are needed. Made in the USA, the 3.3 oz tube provides 40% more grease than typical 1 oz tubes, supplying enough product for multiple service tasks. The formula is non-corrosive and compatible with plastic and rubber, helping maintain flexible seals and reduce wear on connectors and boots. Use it for spark plug boots, battery terminals, connectors, switches, and other electrical contacts that need a protective barrier against salt, dirt, and moisture.

How does this grease improve ignition and spark plug performance?

Applied to spark plug boots and coil boots, the grease helps maintain a consistent insulating layer that resists moisture and contamination. That reduces the chance of arcing or tracking around the boot and helps preserve connector integrity during heat cycles.

• Creates an insulating barrier on spark plug boots to limit current leakage
• Prevents moisture intrusion into boot-to-plug interfaces
• Reduces wear from repeated installation and removal
• Heat-resistant silicone formulation suitable for engine bay temperatures

Will this dielectric grease harm rubber or plastic parts?

The product is formulated specifically to be non-corrosive and compatible with most plastics and rubbers used in automotive connectors and seals. It lubricates moving parts without causing swelling or cracking when applied correctly and sparingly.

• Safe for use on rubber boots and plastic connector housings
• Prevents drying and cracking of seals over repeated service
• Non-reactive with common polymer materials found in wiring harnesses
• Apply a thin film rather than a heavy layer to avoid attraction of dirt

What specific electrical connections benefit from this grease?

This dielectric grease is suited for a wide range of contacts where protection, lubrication, and insulation are beneficial. It’s especially useful in locations exposed to weather, road salt, or frequent temperature changes.

• Spark plug and ignition coil boots to help prevent arcing and corrosion
• Battery terminals and cable ends as a protective barrier against corrosion
• Electrical connectors, switches, and harness splice points to repel moisture
• Any connector that uses rubber or plastic seals which need lubrication

How much product do I get and how long will it last for typical tasks?

The 3.3 oz tube supplies roughly 40% more grease than a standard 1 oz tube, making it convenient for multiple maintenance sessions. A small amount goes a long way — a thin film on each contact is usually sufficient, so the tube will cover many spark plugs and connectors before needing replacement.

• 3.3 oz tube size offers extended service life over single-ounce tubes
• Thin application technique maximizes coverage and minimizes waste
• Durable, weather-resistant formula holds up through seasonal cycles
• Suitable for professional techs and DIY maintenance schedules

Who is this for: Klear Concepts Dielectric Grease is intended for automotive technicians, mechanics, restoration hobbyists, and any DIYer who performs electrical or ignition system maintenance. It’s ideal for people who need a reliable, non-corrosive silicone grease that protects connectors, preserves rubber and plastic parts, and helps prevent moisture-related electrical issues in demanding environments.