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
“H319 (eye irritation Cat 2) in SDS §2. Hand or machine application with a pad · centrifugal splatter during machine polishing is the realistic contact route. No H318 (serious eye damage).”
— Meguiar's
U.S. regulatory standard
29 CFR 1910.133(a)(1)
“The employer shall ensure that each affected employee uses 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
“H317 (Skin Sensitization Cat 1A) in SDS §2 · driven by CMIT/MIT preservative (CAS 55965-84-9) at ≤0.002%. CMIT/MIT is a potent skin sensitizer at trace concentrations. Nitrile gloves are consistent with SDS §8 and ASTM F739 permeation data for isothiazolinone-class compounds.”
— Meguiar's
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.
No PPE specified in published sources for lungs. Absence does not imply “not needed” — consult the full Safety Data Sheet.
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 #1 of 4 in Glass Polish.
Last reviewed June 9, 2026
TL;DR Removes glass hazing, contamination, and water spots, and is well-reviewed on Amazon for restoring neglected glass. The manufacturer is explicit that this is not a wiper-scratch remover. Works with a polisher. Sold as EU SKU (G8408EU) on Amazon US.
This is an aluminium oxide abrasive slurry designed to clean and restore automotive glass, not to remove wiper arc scratches. It is well-reviewed on Amazon for bringing neglected windshields with years of buildup back to clarity. Apply with a foam or felt pad by hand or machine and wipe off; follow up with a glass cleaner, which the manufacturer recommends.
The right buyer is dealing with glass hazing, hard water spots, mineral deposits, or road film that glass cleaner cannot touch. Anyone trying to remove wiper arc scratches should skip it: the manufacturer states on the label this is not a scratch remover, and aluminium oxide abrasive lifts surface contamination rather than removing geometric glass defects. For wiper arc scratches, a dedicated cerium oxide compound is the appropriate tool.
The EU REACH SDS (2019) classifies H317 (Skin Sensitization Cat 1A) from the CMIT/MIT preservative at trace concentration (≤0.002%), and H319 (eye irritation Cat 2). SDS §8 specifies skin protection for prolonged contact; nitrile gloves block the isothiazolinone class per ASTM F739. No respiratory H-codes in SDS §2. H412 (aquatic chronic Cat 3) at mixture level is reflected in the environment score. No Prop 65 warning.
No · Meguiar's is explicit on the bottle label: 'This product is NOT a glass scratch remover.' The compound is formulated to remove hazing, contamination, and water spots · surface-level problems, not geometric scratches. For wiper arc scratches, a dedicated cerium oxide-based glass polishing compound is a better starting point.
Meguiar's positions it for hard-water spots, mineral deposits, and hazing · the feature bullets list 'deep cleans glass and removes water spots.' It is well-reviewed on Amazon for glass-clarity restoration. It does not remove wiper arc scratches: Meguiar's states on the label that this is not a glass scratch remover. Water spots and hazing are surface contamination the aluminum oxide abrasive can lift; wiper scratches are geometric defects that need a dedicated cerium oxide compound.
G8408EU is Meguiar's European-market SKU for the 8 oz Perfect Clarity Glass Polishing Compound, sold via Amazon US as an import. The formula is the same product; the EU designation reflects the labeling and SDS format (EU REACH) rather than a different formula. The ASIN B07CSYZBNN resolves to this gray-market EU SKU on Amazon US.
Yes · the product is well-reviewed on Amazon for machine use, though no dedicated forum documentation of pad type, OPM settings, or specific technique was found at time of research. The aqueous cream consistency is physically compatible with a glass-specific foam or felt pad on a polisher at low OPM. Meguiar's recommends working with its applicator pad for best results.
The EU REACH SDS (2019 revision, Meguiar's UK Ltd) classifies the product as WARNING with H317 (skin sensitization Cat 1A), H319 (eye irritation Cat 2), and H412 (harmful to aquatic life with long lasting effects). The H317 classification is driven by the CMIT/MIT preservative at ≤0.002%. No DANGER signal word, no H318 serious eye damage, no H335 respiratory irritation, no Prop 65 warning.
The manufacturer recommends following up with a glass cleaner. The glass surface is clear after the polishing step, and a follow-up glass cleaner wipe is the standard procedure · it's a clean-up step, not a sign the product failed.
Marketing copy from Meguiar's, via Amazon. Not editorial.
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