CarCareTruth Score
Decent.
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Prices may varyHealth score is for adult use as intended. No manufacturer SDS is on file, so it is translated from the ingredient chemistry. 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.
No Safety Data Sheet on file.
CarCareTruth has not received a Safety Data Sheet from the manufacturer for this product, so no GHS hazard classification can be cited. The tiers below are cautious defaults — “Beyond SDS” — translated from the product’s ingredient chemistry and how comparable formulations classify, not from a manufacturer hazard classification. Request an SDS from the manufacturer before use.
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Only when: splash risk
Beyond SDS: translated from the ingredient chemistry
No SDS on file. Situational tier applied as the minimum defensible position given unknown chemistry. Avoid eye contact during application as standard practice.
No Safety Data Sheet is on file for this product. The tier above is a cautious default translated from the ingredient chemistry, not a cited manufacturer classification. Request an SDS from the manufacturer before use.
Only when: prolonged use
Beyond SDS: translated from the ingredient chemistry
No SDS on file. Situational tier applied. Wash hands after use.
No Safety Data Sheet is on file for this product. The tier above is a cautious default translated from the ingredient chemistry, not a cited manufacturer classification. Request an SDS from the manufacturer before use.
Only when: in enclosed space
Beyond SDS: translated from the ingredient chemistry
No SDS on file. Silicone paste format with no known vapor pathway. Situational is the minimum valid tier for chemical products per schema rules.
No Safety Data Sheet is on file for this product. The tier above is a cautious default translated from the ingredient chemistry, not a cited manufacturer classification. Request an SDS from the manufacturer before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — no Safety Data Sheet is on file, so request one from the manufacturer before use.
PPE tiers here are cautious defaults translated from the product’s ingredient chemistry — no manufacturer SDS is on file to cite. Not professional safety advice. How we report safety.
Scope of these PPE tiers. The tiers on this page translate the product's Safety Data Sheet where one is published, plus its ingredient chemistry, into a comparable rating. They describe a formulation, not a situation: a tier is not a safety determination for any specific user, task, quantity, or environment. The manufacturer's label and use instructions govern how the product is handled. Where the product is used at work, the employer's PPE program and hazard assessment under 29 CFR 1910.132 decide what protection is selected, not this page.
No warranties. CarCareTruth makes no warranties, express or implied, and expressly disclaims the implied warranties of merchantability and fitness for a particular purpose.
This product ranks #6 of 7 in Dielectric Grease.Three above it ↓
Last reviewed June 14, 2026
TL;DR The 8 oz jar with built-in brush is a practical format for multi-pin connectors and spark plug boots; a strong community signal, highly rated by a large owner base, backs the protection performance. The health score of 5.0 reflects no SDS on file · not a confirmed hazard.
Mission Automotive's silicone dielectric paste seals moisture and corrosion from connector pins, spark plug boots, and battery terminals. The jar-and-brush format makes it easier to apply a controlled amount on multi-pin trailer plugs than squeezing from a standard tube. The product is highly rated by a large base of owners on Amazon, suggesting consistent results in real-world use. The label claims a temperature range of -55°F to 570°F; the 570°F figure likely reflects the auto-ignition point rather than a continuous service rating, so performance near exhaust-adjacent sensors isn't independently confirmed.
Good choice for trailer owners or anyone maintaining multi-pin electrical connectors who wants a brush-on format instead of squeezing a tube. The 8 oz size makes sense for fleets or regular service intervals. Skip it if you need SDS documentation for a workplace or commercial application · no SDS is available for this product.
No SDS was located for this product. PPE tiers are applied at the minimum defensible level for a silicone paste: situational eye and skin protection during application, situational lung protection in enclosed spaces. The health score of 5.0 reflects this data gap. The silicone base is non-volatile and leaves no drain-pathway residue in normal leave-on connector use.
CarCareTruth couldn't locate a Safety Data Sheet (SDS) for this product. A score of 5.0 is the default applied when no SDS is on file · it reflects a data gap, not a confirmed chemical hazard. The formula is silicone paste, which is typically low-risk, but we can't confirm specific classifications without the SDS.
Possibly not as a continuous service temperature. The 570°F figure appears to be the auto-ignition temperature rather than a stable operating range. For underhood connector protection, a silicone paste rated to 200-300°F for continuous service is typical; this product likely performs in that range but the 570°F label claim should be read with skepticism.
The built-in brush lets you apply a precise amount to connector pins without squeezing too much from a tube. It's particularly useful for trailer harness plugs and multi-pin electrical connectors where over-application fills the connector body.
Marketing copy from Mission Automotive, via Amazon. Not editorial.
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