Priced as of May 17, 2026
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Prices may varyFrom the Safety Data Sheet
Full SDS ↗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 §8SkinRecommendedMfr. SDS §8 · 29 CFR 1910.138(a) · GHS H317LungsSituationalMfr. SDS §8Ventilation—No PPE in published sourcesShow details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“H226 and H317 are the classified hazard codes; neither drives an eyes PPE requirement. Pump-spray mist during panel application creates a plausible (though low-probability) eye-contact pathway — situational tier based on spray vector.”
— Gyeon
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
“H317 (Skin Sensitizer Cat 1) is a real chemistry signal from SDS §2 — sensitization can occur with repeated skin contact. Gloves are appropriate for routine use.”
— Gyeon
U.S. regulatory standard
29 CFR 1910.138(a); 1910.132(d)
“appropriate hand protection when employees' hands are exposed to hazards such as those from skin absorption of harmful substances.”
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
“No inhalation H-codes (H332/H335/H331) classified in SDS §2. Formula is water-based with low-VOC profile; outdoor panel-wipe application presents negligible inhalation risk. Situational tier applies only for enclosed or poorly ventilated spaces where ethanol and terpene vapors could concentrate.”
— Gyeon
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.
CarCareTruth's Analysis
Last reviewed May 18, 2026
TL;DR Handles fresh-to-moderate mineral water spots on painted panels in one pass, but the milder acid formula struggles with heavily baked-on seasonal deposits — a notable failure pattern in the review corpus. Formulated for **painted surfaces only** (not glass). WARNING-level chemistry; a skin sensitizer H-code means gloves are appropriate for regular use.
What it is and how it performs
Gyeon Q²M WaterSpot is a pH-5 chelating spray that loosens and lifts mineral deposits from painted clear coat without resorting to stronger acid formulas. Spray onto a quality microfiber, wipe panel-by-panel — no rinse step. Reviews split sharply: 59% five-star for tap-water and sprinkler overspray, 17% one-star for heavy baked-on contamination. The brand acknowledges repeat applications are needed for stubborn spots. Ceramic coating compatibility is claimed by the manufacturer; no independent community corroboration at the ≥2-source threshold has been found.
Who should buy this — and who should skip it
Right pick for owners dealing with moderate hard-water deposits on painted panels — tap-water spots, light sprinkler overspray, or fresh seasonal deposits — especially on ceramic-coated vehicles where a gentle formula is preferred. Owners with heavily baked-on or multi-season mineral deposits should consider stronger acid formulas. Buyers with spots primarily on glass should use a dedicated glass-specific water spot remover.
Safety and environmental impact
WARNING signal word from the SDS, driven by a skin sensitizer classification (H317) and a flammable liquid code that has no relevance to normal panel-wipe use. The H317 skin sensitizer is a real chemistry signal — gloves are appropriate for regular skin contact. Orange oil carries aquatic toxicity at ingredient level; do not rinse directly to a storm drain or surface water. Dispose of wash water via household wastewater or allow microfiber residue to enter the laundry drain.
From the manufacturer
Marketing copy from Gyeon, via Amazon. Not editorial.
- •POWERFUL WATER SPOT REMOVAL Targets and dissolves hard water stains and mineral residue quickly preserving the smoothness of painted surfaces while preventing long‑term damage from embedded deposits on your vehicle’s finish
- •CERAMIC COATING SAFE Specifically developed for use on ceramic coated vehicles ensuring effective spot removal without affecting the hydrophobic layer offering reliable protection and finish retention after cleaning
- •FAST APPLICATION METHOD Simply apply to microfiber towel and wipe panel by panel for consistent coverage without streaking or haze delivering professional level detailing results in just minutes with minimal effort
- •MULTI‑SURFACE COMPATIBLE Removes water spots from paint glass trim and chrome without harming delicate materials or altering the appearance of finishes making it ideal for both maintenance washes and deep cleans
- •MAINTAINS GLOSS AND CLARITY Helps restore original shine and clarity to coated or uncoated surfaces while maintaining the surface's protective qualities leaving a streak‑free surface ready for display or daily driving
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Manufacturer images
Manufacturer specifications
- Is Discontinued By Manufacturer
- No
- Product Dimensions
- 3 x 3 x 11 inches; 1 Pounds
- Item model number
- GY-1800
- Department
- All Ages
- Date First Available
- April 8, 2016
- Manufacturer
- GYEON quartz Cloth
- ASIN
- B01CESR4YA
- Best Sellers Rank
- See Top 100 in Automotive
- Item Form
- Spray
- Scent
- Unscented
- Specific Uses For Product
- Hard Water Spot Removal
- Surface Recommendation
- Glass
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