CarCareTruth Score
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Prices may varyThe manufacturer's Safety Data Sheet classifies this product with one or more GHS Category 1 health hazards — the most severe tier. The hazard statements in quotes below are the verbatim GHS language from the SDS, as required by OSHA's Hazard Communication Standard. The line under each statement translates the GHS classification into plain language.
GHS Category 1 eye damage — classified as causing irreversible eye damage on contact.
If swallowed, inhaled, or splashed in eyes:
Call Poison Control immediately at 1-800-222-1222 (US, 24/7, free) and have the product container with you. Poison Control's standing guidance is to not induce vomiting after chemical exposure; they will direct first-aid steps based on the specific product.
About 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 the manufacturer's safety sheet. They do not replace the SDS or substitute for a hazard assessment specific to your task.
Health 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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Especially relevant: handling concentrate · splash risk
Translated from the manufacturer’s Safety Data Sheet, Section 2
This formula causes serious eye damage on contact. The SDS classifies it as Eye Damage Category 1 (H318) at the SDS-tested strength. Eye protection is required when pouring or measuring the product into a foam cannon.
U.S. regulatory standard
29 CFR 1910.133(a)(1); 1910.151(c)
“The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from… liquid chemicals, acids or caustic liquids…”
ANSI Z87.1 (chemical splash protection — 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.
Especially relevant: handling concentrate · prolonged use
Translated from the manufacturer’s Safety Data Sheet, Section 2
This formula causes skin irritation on contact. The SDS classifies it as Skin Irritation Category 2 (H315) at the SDS-tested strength. Gloves are recommended when handling the concentrate; the diluted foam-cannon spray on-car reduces but does not eliminate contact risk.
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.
Only when: in enclosed space
Translated from the manufacturer’s Safety Data Sheet, Section 8
No respiratory irritation code (H335) or inhalation-toxicity code is classified at the SDS section 2 mixture level, and the estimated VOC contribution from the 1-5% isopropyl alcohol co-solvent is under 50 g/L. Foam-cannon application is outdoor and low-velocity. SDS section 8 names respiratory protection in general boilerplate terms, so this is carried as a cautious situational precaution for pouring and mixing in an enclosed garage, not a mist-inhalation hazard.
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 #10 of 12 in Pre-Wash & Snow Foam.Three above it ↓
Last reviewed July 31, 2026
TL;DR This DANGER-labeled snow foam can cause permanent injury to the eyes on contact at concentrate strength, so wear splash goggles when pouring it into a foam cannon. It tests pH 8 undiluted, below the alkaline concentrates common in this category, and produces thick, clinging foam for a touchless pre-soak, though independent reviews of its cleaning power are still thin.
Yum Foam blankets the car in thick foam that clings to vertical panels during a pre-soak dwell, loosening grime before the contact wash. YumCars specs 100 to 150 milliliters per foam-cannon reservoir topped with water, then a short dwell and rinse. The brand markets a high-foaming, residue-free result, but no independent review of this formula's cleaning power turned up in research.
The right buyer runs a two-bucket wash and wants a pre-soak that isn't a harsh alkaline concentrate, since this one measures pH 8 undiluted. Skip it for heavy tar, industrial fallout, or baked-on bug protein; those need a dedicated pre-treatment, not a foaming pre-wash. YumCars is also a small UK brand, so US stock and support are thinner than a mainstream brand's.
The DANGER signal word comes from eye-damage and skin-irritation classifications at bottle strength, so splash goggles matter when pouring or measuring it, and gloves are a sensible extra. Two surfactant ingredients carry an aquatic-toxicity classification and the rinse heads down the drain, so it isn't a hose-in-the-yard product. It cleared California's Prop 65 list on an ingredient-by-ingredient check, and its small isopropyl-alcohol content keeps VOC output low.
The SDS lists the concentrate's pH at 8, well inside the range detailers consider paint-safe, and there are no reports in the SDS or manufacturer literature of it stripping wax or coating protection. That said, no independent long-term test of this specific formula on a coated vehicle was found during research, so treat it as likely coating-safe rather than independently verified.
YumCars specifies 100 to 150 milliliters of concentrate topped off with water in the foam-cannon reservoir, using the MTM PF22.2 cannon as its reference unit. Actual foam thickness will vary with a different cannon's air-to-water ratio, so treat that range as a starting point and adjust to the coverage and dwell time you want on your own setup.
Yes for eye protection. The SDS classifies the concentrate as causing serious eye damage on contact, which makes splash goggles the relevant call whenever you're pouring or measuring it into a cannon. Gloves aren't strictly required but are a sensible add, since the same concentrate also carries a skin-irritation classification at that strength.
No. The Amazon listing carries no Prop 65 warning, and a chemistry-level check of every disclosed ingredient's CAS number against California's Proposition 65 list came back clear, meaning none of the six named ingredients are currently listed. That's an affirmative check against the list, not just an absence of a warning label.
Most snow-foam concentrates in this category test strongly alkaline, often in the pH 11 to 13 range at concentrate strength. Yum Foam's SDS puts its concentrate at pH 8, a meaningfully lower and less caustic starting point, even though it still carries a DANGER signal word from eye and skin irritation classifications tied to its surfactant concentration rather than causticity.
Marketing copy from YumCars, via Amazon. Not editorial.
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