Made in the USA
Since 1931
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Sil-Glyde®
How to use — 3 easy steps
1
Clean
Make sure boots, terminals and connectors are clean and dry.
2
Apply
Coat the inside of the boot or connector with a thin film.
3
Connect
Reconnect — the seal locks out moisture and prevents sticking.
Compare the line
Which Sil-Glyde® do I need?
| Sil-Glyde Boot Protector, Tube, 1.25 oz,CardThis product | Sil-Glyde Silicone Lubricant | Sil-Glyde Silicone Brake Lubricant | Sil-Glyde General Purpose Silicone Lubricant - 10.5oz Aerosol | Sil-Glyde General Purpose Lubricant - Brush Top | |
|---|---|---|---|---|---|
| Best for | Sealing & protecting electrical connections | Everyday squeaks, sticking & general lubrication | All-around brake hardware on any pad type | Fast coverage on large or hard-to-reach areas | Precise, no-mess application at the bench |
| Where to use | Spark-plug boots, connectors, terminals, distributor caps | Hinges, weatherstrip, window channels, cables, tracks | Original silicone formula, rubber-safe, 425°F | Garage/sunroof tracks, sliders, weatherstrip, overhead points | Assembly points, threads, small parts, DIY repairs |
| Format | Grease — 1.25 oz tube | Grease — tube & tub | 4 & 8 oz tube, 12 oz tub, 4 g pouch | Spray — 10.5 oz aerosol | Brush-top can — 4 & 8 oz |
| Price | $5.06 | $5.10 | $10.40 | $14.56 | $8.99 |
The details
Description
Sil-Glyde Boot Protector - Tube
If you're looking for a product that will keep your spark plugs in top condition, then you need Sil-Glyde Dielectric Spark Plug Protector. This special high-temperature formula dielectric silicone is perfect for protecting spark plug boots and wires from sticking to plugs and distributor caps. It also prevents voltage leakage, so you can be sure your spark plugs are always firing on all cylinders. Sil-Glyde Dielectric Spark Plug Protector is an essential tool for any vehicle owner who wants to keep their vehicle in peak condition.
At a glance
Specifications
| Size | 1.25 oz tube (carded) |
| Type | High-temperature dielectric silicone |
| Best for | Spark-plug boots, wires, distributor caps, connectors |
| Prevents | Sticking, fusing & voltage leakage |
| Water-resistant | Yes |
📄 Dielectric Spark Plug Grease - Safety Data Sheet
For professional installers & shops — full technical documentation.
Good to know
Frequently asked questions
What is dielectric grease used for?
Sealing and protecting electrical connections — spark-plug boots, wire ends, connectors, terminals and distributor caps — from moisture and corrosion.
Will it stop my spark-plug boots from sticking?
Yes — a thin film keeps boots from fusing to plugs and distributor caps, so they pull off cleanly at the next service.
Does it block the electrical signal?
No. Applied to the connection surfaces, it seals out moisture and prevents voltage leakage while the metal contacts still mate.
Is it safe on rubber boots and connectors?
Yes — the silicone formula won't swell or degrade rubber and plastic components.