Priced as of May 18, 2026
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Prices may varyAbout this product's hazards. This product's Safety Data Sheet uses signal word danger. Read the manufacturer's SDS and follow all safety instructions before use. CarCareTruth ratings translate SDS data — they do not replace the SDS or substitute for a hazard assessment specific to your task.
From the Safety Data Sheet
Full SDS ↗ (rev. 2015-05-06)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.
EyesRequiredMfr. SDS §8 · 29 CFR 1910.133(a)(1) · GHS H320SkinRequiredMfr. SDS §8 · 29 CFR 1910.138(a) · GHS H315LungsRequiredMfr. SDS §8 · 29 CFR 1910.1000 · GHS H340Ventilation—No PPE in published sourcesShow details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“DANGER signal word is driven by health hazard codes — germ-cell mutagenicity Cat 1B, carcinogenicity Cat 1B, STOT RE Cat 1 — and SDS Section 8 prescribes a full-facepiece respirator that doubles as eye protection. Eye irritation Cat 2B is also classified at the mixture level.”
— Liquid Wrench
U.S. regulatory standard
29 CFR 1910.133(a)(1)
“appropriate eye or face protection when exposed to eye or face hazards from… liquid chemicals…”
ANSI Z87.1 (incorporated via §1910.6)
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
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 Section 8 prescribes chemical-resistant gloves and an impervious apron — the carrier is 80–<100% petroleum distillate and skin irritation is classified at the mixture level.”
— Liquid Wrench
U.S. regulatory standard
29 CFR 1910.138(a)
“appropriate hand protection when employees' hands are exposed to hazards such as those from… chemicals which produce an adverse effect on the skin or eyes…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
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 Section 8 prescribes a chemical respirator with organic vapor cartridge and full facepiece — not boilerplate. The petroleum-distillate carrier plus germ-cell mutagenicity, carcinogenicity, and prolonged-exposure organ damage classifications drive the inhalation hazard.”
— Liquid Wrench
U.S. regulatory standard
29 CFR 1910.1000; 1910.1200
“Each employer shall assure that no employee is exposed to an inhalation concentration of any substance shown in Tables Z-1, Z-2, or Z-3 in excess of the limits in the tables.”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
The published Safety Data Sheet for this product does not specify ventilation protection for consumer use.
Workplace context
29 CFR 1910.134(a); 1910.1000
“the primary objective shall be to prevent atmospheric contamination [via] accepted engineering control measures (for example, enclosure or confinement of the operation, general and local ventilation…).”
Triggered by GHS H336 on the SDS.
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
CarCareTruth's Analysis
Last reviewed May 18, 2026
TL;DR DANGER-rated aerosol with a confirmed Prop 65 warning, germ-cell mutagenicity and carcinogenicity classifications from the petroleum-distillate carrier, and an SDS-prescribed full-facepiece respirator — health 1.0, floor-bound. The product itself works (4.6★, 790 reviews) for stopping squeaks on door seals, hinges, and rubber-metal squeak points. Cleaner silicone sprays exist with similar performance.
What it is and how it performs
Liquid Wrench Silicone Spray lubricates rubber seals, weatherstripping, hinges, and rubber-metal squeak points — community reviewers report stopping garage-door-pulley noise for months, silencing snowblower augers, and quieting leaf-spring squeak. Standard wide-fan aerosol button, no straw or directional nozzle; one reviewer notes a lot comes out per spray on tight jobs, so overspray is a real risk. Keep it off painted panels and any surface that may need bodywork or adhesive bonding — silicone residue prevents primer and paint from sticking.
Who should buy this — and who should skip it
Car owners and homeowners with squeaky door seals, sticking window tracks, binding weatherstripping, or rubber-metal squeak points. Skip it for metal-on-metal contact (hinges under load, fasteners, chains) — use white lithium grease. Never apply near brake components. Given the chemistry below, consider a cleaner silicone-only formula if you spray frequently or work in an enclosed garage — performance is similar, the carrier is not.
Safety and environmental impact
DANGER signal word is driven by health-tier classifications: germ-cell mutagenicity Category 1B ("may cause genetic defects"), carcinogenicity Category 1B ("may cause cancer"), and prolonged-exposure organ damage Category 1. Suspected reproductive toxicity Category 2 is also classified. Prop 65 is confirmed in SDS Section 15 — cumene and ethylbenzene are listed California carcinogens. The carrier is 80–<100% petroleum distillate, and the SDS explicitly prescribes chemical-resistant gloves, an impervious apron, and a chemical respirator with organic vapor cartridge and full facepiece — a specific Section 8 instruction, not boilerplate. Use outdoors or with the garage door fully open. VOC is high (~476 g/L) and the mixture is toxic to aquatic life with long-lasting effects; the silicone film stays on the surface, but the carrier and propellant volatilize on application.
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