CarCareTruth Score
Decent.
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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.
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.
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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.
This product ranks #5 of 8 in Dielectric Grease.Three above it ↓
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.
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. owners confirm the product holds up through normal service intervals.
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.
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.
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.
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).
Marketing copy from Versachem, via Amazon. Not editorial.
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