Versachem Dielectric Connector Grease, 3 oz
Priced as of May 22, 2026
4.6(265 ratings)Buy on AmazonSaved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
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Prices may varyHealth score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
From the Safety Data Sheet
Full SDS ↗ (rev. 2020-04-30)GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
EyesSituationalMfr. SDS §8SkinSituationalMfr. SDS §8LungsSituationalMfr. SDS §8Ventilation—No PPE in published sourcesShow details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“SDS §2 carries no H319 or H318 classification — product is non-hazardous by OSHA HCS. Label precautionary language 'CAUTION! EYE AND SKIN IRRITANT' is not backed by a §2 GHS code. Splash risk during paste transfer is the relevant trigger.”
— Versachem
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“SDS §2 carries no H315 or H317 classification. Label precautionary language without a GHS H315 code. Prolonged or repeated contact is the relevant trigger.”
— Versachem
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“SDS §2 classifies no inhalation hazard. SDS §8 lists no respirator requirement for normal use. Silicone paste is non-volatile at application temperatures. The enclosed-space trigger applies as chemical-product schema minimum, not because the chemistry identifies an inhalation hazard.”
— Versachem
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — consult the full Safety Data Sheet.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
The Podium · Top 3 in Dielectric Grease
See the full ranking →This product ranks #5 of 6 in Dielectric Grease.Three above it ↓
CarCareTruth's Analysis
Last reviewed May 26, 2026
TL;DR OEM-specified silicone protection for spark plug boots, trailer connectors, and battery terminals, rated to +400°F for high-heat underhood locations. Standard tube format without syringe precision, but a dependable pick for routine connector service.
What it is and how it performs
Apply a thin coat inside spark plug boots and dab on connector pins before seating. The silicone formula resists arcing, keeps moisture out, and prevents boots from fusing to plugs after heat cycling. The -65°F to +400°F range covers coil-on-plug boots and O2 sensor connectors. Use restraint on multi-pin connectors; excess paste can displace contact surfaces. Amazon verified-purchase reviewers confirm the product holds up through normal service intervals.
Who should buy this — and who should skip it
Good fit for spark plug service, seasonal trailer connector prep, and battery terminal protection where OEM specification matters. The extended temperature spec works for sensor connectors near catalytic converters or turbos. Skip it if you need syringe-level precision or only need a single-use dab; a 3 g single-use packet covers a one-off job without leftover.
Safety and environmental impact
SDS §2 classifies this product as non-hazardous under OSHA HCS: no GHS hazard codes, no signal word. SDS §8 lists no respirator requirement for normal use; silicone paste produces no vapor at application temperatures. The product carries a California Prop 65 listing; boric acid appears in SDS §15 as a trace processing aid. The silicone base stays on connectors with no drain pathway.
Frequently asked questions
How does Versachem Dielectric Connector Grease, 3 oz score on CarCareTruth?▾
CarCareTruth scores Versachem Dielectric Connector Grease, 3 oz at 7.0 out of 10 on the composite CCT score, with a health sub-score of 8.8/10. The CCT score blends real-world effectiveness, ingredient health impact pulled from the manufacturer's safety sheet, and environmental footprint against a published category rubric. See the methodology link on this page for the full scoring breakdown.
What's in Versachem Dielectric Connector Grease, 3 oz?▾
Per the Safety Data Sheet ingredient disclosure: SDS §3 lists no ingredients above disclosure thresholds. SDS §15 NJ RTK: Boric Acid (CAS 10043-35-3) — trace processing aid, Prop 65-listed reproductive toxin. Amazon label and SDS implied base: polydimethylsiloxane (silicone polymer).
From the manufacturer
Marketing copy from Versachem, via Amazon. Not editorial.
- •Enables boots to be removed from spark plugs and distributor caps
- •High performance, 100% silicone dielectric compound
- •Works best on spark plugs, battery terminals, headlight sockets, electrical connections, etc.
- •Waterproof, non-flammable, and corrosion resistant
- •OEM (Original Equipment Manufacturer) specified
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Manufacturer videos
Manufacturer specifications
- Material
- Silicone
- Brand
- Versachem
- Package Information
- Tube
- Liquid Volume
- 3 Fluid Ounces
- Item Weight
- 3 Ounces
- Brand Name
- Versachem
- Recommended Uses For Product
- Electrical
- Item Form
- Grease
- Global Trade Identification Number
- 00078727153392
- Manufacturer
- Versachem
- Unit Count
- 85 Grams
- UPC
- 078727153392
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