- Joined
- Oct 14, 2023
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- 142
Apologies if the question is lame and illiterate. Would this work on spark plug boots as a dielectric grease? Thanks
It says lubricating. Were you wanting it for dielectric items?
Probably. I use DC4
Then why does it smell so different? I have both of those greases and I trust my nose. I use Permatex dielectric for boots .bootsSil-Glyde is pretty much identical in composition to the dielectric grease found in auto parts stores.
At the thickness that this is applied at it will be woefully inadequate to prevent any sort of dielectric breakdown at ignition voltages. At these thicknesses it’s a dielectric but only in the sense that it’s not a conductor. All you’re doing here is trying to prevent the boot from sticking to the ceramic and to prevent moisture ingress.Almost any grease will insulate well enough at low voltages, but if there's one application where you want a proper dielectric grease, it's spark plug boots. Peak voltages in the ignition system will be in the tens of thousands of volts. Your mystery grease could work fine, but I'd use dielectric grease.
It is not pretty much identical. You are referencing a topic about silicone grease vs dielectric (which usually IS silicone grease), while Sil-Glyde is NOT silicone grease. It is castor oil based grease with some silicone in it. Big difference.Sil-Glyde is pretty much identical in composition to the dielectric grease found in auto parts stores. Here is a previous BITOG thread on the subject:
Silicone Grease vs. Dielectric Grease
That's what I used on my battery terminals and it got too dielectical and wouldn't crank.That’s fine. syl-glyde is closer to Toyota’s rubber grease, a glycol-based grease. Syl-Glyde is castor oil grease that’s rubber safe.
I use Dow 111. Food-safe, rubber/plastic-safe, scuba-safe(as long as you don’t use it with nitrox which is compressed air with more than 21% of oxygen).
That darned dialectical.That's what I used on my battery terminals and it got too dialectical and wouldn't crank.
If it interfered with conduction then there was a problem with your terminal clamp. It wasn't making metal-to-metal contact, if the grease kept it apart then it was far too weak.The Dow 111 is self leveling and got between the post and clamp and interfered with cranking. Some places you do not want dielectric grease.