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
“No eye-irritation H-code in SDS §2 mixture classification. SDS §8.2.2 explicitly states 'None required' for eye protection. Consumer back label notes 'possible eye irritant' under FHSA CAUTION. Situational tier reflects pour-and-apply splash exposure only, not an SDS §2 finding.”
— Meguiar's
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 H315 or H317 in SDS §2 mixture classification. SDS §8 recommends polymer laminate or nitrile gloves based on exposure assessment results for prolonged contact. Consumer back label notes 'possible skin irritant.' Situational tier reflects SDS §8 conditional glove recommendation, not a §2 sensitizer classification.”
— Meguiar's
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 H335 or H334 in SDS §2. Isoalkane carrier at approximately 20% of formula off-gases mildly during application. SDS §8 states an exposure assessment may be needed to decide if a respirator is required; conditional boilerplate, not a mandatory GHS inhalation classification.”
— Meguiar's
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 #7 of 14 in Liquid Wax.Three above it ↓
Last reviewed June 29, 2026
TL;DR Water-based carnauba liquid wax with manufacturer-claimed high-grade pure carnauba. Community follow-ups center durability at 4-5 weeks on a daily driver, shorter than the "extreme durability" label framing. No GHS hazard classification at the mixture level; California Prop 65 disclosure present.
Meguiar's Deep Crystal is a water-based liquid carnauba wax with a moderate petroleum-distillate co-carrier. It spreads thinly across a panel, hazes in minutes, and wipes off cleanly with a microfiber in a single pass. Owners describe the finish as a warm, deep wet look with notable color saturation. Application ease is the standout dimension: whole-car apply-and-buff with minimal effort, accessible to first-time wax users. Durability is the consistent limitation: community reports center on 4-5 weeks of visible water beading on a daily driver washed weekly, below the 6-10 week category median.
This fits the owner who wants carnauba aesthetics and is comfortable reapplying every 4-6 weeks. The liquid formula is easier to apply than paste wax: apply to the whole car, let it haze, and buff off with minimal effort. Skip it if you need 3 or more months between sessions; a synthetic paint sealant will outlast any liquid carnauba wax by a significant margin.
The SDS (CLP/REACH format, rev 2019-11-19) classifies the mixture as not hazardous under CLP: no signal word, no GHS pictograms, no H-codes at the mixture level. H304 is explicitly suppressed by viscosity (25,000-37,000 mPa-s). The product listing carries a California Prop 65 disclosure, consistent with the petroleum-distillate carrier fraction. Estimated VOC around 103 g/L, low-to-moderate for the category.
The SDS §3 lists water, isoalkane solvents, and a preservative. Carnauba wax is non-hazardous and not required to appear in §3 under CLP rules. The back label claims 'highest grade of pure carnauba wax.' Meguiar's has a verifiable GHS SDS and the grade claim is their standard formulation language. Community reviews consistently describe the warm, deep-gloss finish characteristic of real carnauba content.
Community follow-ups center on 4-5 weeks of visible water beading on a daily driver washed weekly, which is shorter than the 'extreme durability' label language suggests. Garage-kept vehicles with less frequent washing may extend that window somewhat. If you need 3 or more months between wax sessions, a synthetic paint sealant or entry-level spray ceramic will outlast any liquid carnauba wax in this format.
Yes. The product is formulated for all clear coat paints and single-stage finishes. The SDS contains no abrasive classification; this is a pure wax carrier, not a compound or polish. The SDS §2 rates the mixture as not classified under CLP, confirming no corrosive or abrasive chemistry at the mixture level.
Carnauba waxes produce a warmer, deeper-looking finish that many owners describe as a wet look with enhanced color saturation. Synthetic sealants typically last 2-6 times longer per application but produce a cooler, cleaner-gloss result. This wax suits owners who want carnauba aesthetics and are comfortable reapplying every 4-8 weeks.
Marketing copy from Meguiar's, via Amazon. Not editorial.
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