High Voltage Silicone Grease for Spark Plugs & Ignition Coils
High Voltage Silicone Grease for Spark Plugs & Ignition Coils
High Voltage Silicone Grease — Spark Plug & Ignition Coil Protector
Keep your vehicle's ignition system running at peak performance with this premium High Voltage Insulating Silicone Grease. Specially formulated for spark plugs, ignition coils, and other high-voltage components, this translucent, non-curing silicone grease creates a reliable protective barrier against moisture, corrosion, and electrical discharge — helping extend the life of your ignition parts.
Key Features
- Superior Electrical Insulation: Ideal for high-voltage applications including spark plugs and ignition coil boots, preventing arcing and voltage leakage.
- Wide Temperature Resistance: Engineered to perform reliably across extreme temperature ranges, from cold starts to high-heat engine environments.
- Corrosion & Moisture Protection: Forms a protective seal that guards metal and rubber components against rust, oxidation, and moisture ingress.
- Non-Curing & Non-Volatile: Stays pliable and effective over time — no hardening, cracking, or evaporation.
- Non-Toxic & Odorless: Safe to handle, with no harmful chemicals, irritants, or strong odors.
- Multi-Purpose Formula: Also suitable for lubrication, dampening, defoaming, and mold release between plastic, rubber, and metal surfaces.
- Environmentally Friendly: Green-formulated product with no high-concern chemicals.
Specifications
| Product Name | High Voltage Silicone Grease |
| Content | 5g per unit |
| Appearance | Translucent viscous grease |
| Curing | Non-curing |
| Volatility | Non-volatile |
| Country of Origin | Made in Mainland China |
Recommended Applications
- Spark plug boots and ignition coil connectors
- High-voltage components in automotive ignition systems
- Household appliances with high-voltage parts (TVs, monitors, FBT components)
- Rubber, plastic, and metal lubrication and dampening
- Defoaming and mold release applications
- Anti-moisture and anti-rust protection on electrical contacts
What's in the Box
- 1 × High Voltage Silicone Grease (5g)
Learn more: FuelEconomy.gov driving efficiency guidance
Frequently Asked Questions
Q: What is high voltage silicone grease used for in automotive applications?
A: High voltage silicone grease is applied to spark plug boots, ignition coil connections, and other high-voltage electrical contacts. It provides electrical insulation, prevents moisture from penetrating connections, guards against corrosion, and helps ensure a secure, long-lasting fit — all of which contribute to a well-functioning ignition system.
Q: Will this silicone grease damage rubber spark plug boots or plastic connectors?
A: No. This high voltage silicone grease is specifically formulated to be compatible with rubber, plastic, and metal surfaces. It is non-corrosive and non-irritating, making it safe for use on spark plug boots, ignition coil boots, and plastic connectors without causing swelling, cracking, or degradation.
Q: How much silicone grease should I apply to a spark plug boot?
A: A thin, even coat on the inside of the spark plug boot and around the terminal is sufficient. You do not need a large amount — a light application ensures proper insulation and ease of removal in the future without attracting excessive dirt or debris.
Q: Is this grease suitable for applications beyond automotive use?
A: Yes! This versatile silicone grease is also used in household appliances with high-voltage components (such as televisions and monitors), as well as for general lubrication, dampening, defoaming, and mold-release tasks involving plastic, rubber, and metal surfaces.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.