Priced as of May 16, 2026
4.8(575 ratings)Subscribe & Save: $37.52 (5% off)Buy on AmazonSaved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
As an Amazon Associate and affiliate partner, CarCareTruth earns from qualifying purchases. Full disclosure
Prices may varyFrom the Safety Data Sheet
Full SDS ↗ (rev. 2023-04-06)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 H318SkinSituationalMfr. SDS §8 · 29 CFR 1910.138(a) · GHS H315Lungs—No PPE in published sourcesVentilation—No PPE in published sourcesShow details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“H318 (serious eye damage, Category 1) classified in SDS §2 — irreversible damage pathway. GHS05 corrosion pictogram present on label. Eye protection is warranted when handling the product.”
— CarPro
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.
From the manufacturer’s Safety Data Sheet, Section 8
“H315 (skin irritation, Category 2) classified in SDS §2 — SDS §8 recommends protective gloves for prolonged or repeated contact. Brief handling during foam-cannon loading carries minimal risk; prolonged undiluted contact is the relevant exposure scenario.”
— CarPro
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.
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.
CarCareTruth's Analysis
Last reviewed May 16, 2026
TL;DR Foam cannon, 2–3 minute dwell, rinse — no wipe, no timing pressure. Water-beading holds 4–8 weeks on daily drivers, not the "months" on the label. The DANGER signal word is driven by H318 serious eye damage; eye protection is required when handling the concentrate.
What it is and how it performs
HydrO2 Foam is a foam-cannon ceramic sealant with SDS-confirmed aminosiloxane chemistry (20–25%) that bonds to paint without a wipe step. Dilute 1:10–1:30, foam on, dwell 2–3 minutes, rinse. No timing window, no high-spot risk — the most forgiving application process in the category. Real-world protection runs 4–8 weeks on daily drivers washed weekly, well short of the "lasting months" label claim but consistent across 575 Amazon ratings (4.8 stars).
Who should buy this — and who should skip it
Best for foam-cannon owners who want ceramic protection built into their wash routine with no extra steps. Skip it without a foam cannon — this is not a spray-and-wipe product. If durability beyond 8 weeks is the priority, other hybrid ceramics with stronger community longevity data are the better fit.
Safety and environmental impact
The DANGER signal word is driven by H318 (serious eye damage, Cat 1) and H315 (skin irritation, Cat 2) — both applying to the undiluted concentrate. SDS §8 states respiratory protection is not required for normal use; no inhalation H-codes appear in the formula. The surfactant system is confirmed readily biodegradable (OECD 301F), and no PFAS are present.
: https://www.amazon.com/dp/B019HMO4FI — "Water beading lasting 4-6 weeks with weekly washes" — accessed 2026-05-16 — supports: durability_longevity score. : https://www.amazon.com/dp/B019HMO4FI — "Easiest ceramic product I've used — just foam and rinse" — accessed 2026-05-16 — supports: application_ease score.
Frequently asked questions
How long does the protection from HydrO2 Foam actually last?▾
Community evidence on daily drivers washed weekly points to 4–8 weeks of meaningful water-beading between foam applications. The manufacturer describes it as lasting 'months,' which is a significant overstatement of the typical community experience. Because the product is fast to reapply — foam cannon, dwell, rinse — many owners build it into their regular wash routine regardless.
Do I need a foam cannon to use this product?▾
Yes — HydrO2 Foam is specifically formulated for foam cannon or foam gun application. It is diluted in the cannon reservoir (manufacturer recommends 30–100 mL per 1 L water; community commonly uses 1:10 to 1:30 ratios), foamed onto the vehicle, left to dwell for 2–3 minutes, and rinsed off. It is not a spray-and-wipe product.
Why does this product carry a DANGER signal word?▾
The SDS §2 classifies HydrO2 Foam with a DANGER signal word because the undiluted concentrate causes serious eye damage (H318, Category 1 — irreversible). This is a GHS hazard classification for the product as-sold; the working-solution dilution reduces exposure risk, but the SDS classification applies to the concentrate. Eye protection is warranted when handling the undiluted product.
Is HydrO2 Foam safe for ceramic-coated paint?▾
CarPro markets HydrO2 Foam as a maintenance product that works on bare clear coat and over existing ceramic coatings. The aminosiloxane chemistry bonds to the paint surface and refreshes protection. Community reviews confirm positive results on coated vehicles, though compatibility with specific third-party coatings is not independently documented in the SDS.
Does this product contain PFAS or graphene?▾
No. SDS §3 confirms the active chemistry is aminosiloxane — a silicone-based ceramic precursor. No fluorinated compounds (PFAS) and no graphene oxide are listed in the ingredient disclosure. The foam performance comes from the nonionic surfactant system (C12-14 ethoxylated alcohols), not fluoropolymers.
Is HydrO2 Foam environmentally safe?▾
The formula is free of PFAS and the surfactant system is confirmed readily biodegradable (OECD 301F standard, SDS §12). The C12-14 ethoxylated alcohol surfactant carries an ingredient-level aquatic acute toxicity classification (H400), though no mixture-level aquatic H-codes appear in SDS §2. Standard storm-drain avoidance practices apply.
From the manufacturer
Marketing copy from CarPro, via Amazon. Not editorial.
- •Combines the coating properties of hydrophilic glass fibers and fluoropolymers that CARPRO HydrO2 is known for with a pH neutral foaming wash.
- •One of the most advanced foaming shampoos on the market. With a durability of 3 months or more, there aren’t many out there that can compare. CARPRO HydrO2 Foam is pH neutral and leaves behind a glossy, smooth finish.
- •Use with a CARPRO Merino Wool Wash Mitt to remove all surface dirt and debris safely and without cause any washing induced swirls and scratches.
- •Only needs to be rinsed off to be “activated”, causing an effect called "hydroelectric bonding" caused by the water pressure. This hydroelectric bonding accelerates the bonding on the surface creating that glass like shell you’ve come to expect from HydrO2
- •Extremely versatile and can be used on many different surfaces; wheels and wheel wells, calipers, glass, and even plastic
- •Enhances the gloss, depth, and smoothness of your paint.
- •Dirt and water repellency: Dirt and water are repelled from the surface.
- •Resistant to nearly all acids, alkaline solutions, and solvents.
Weekly pick
One product, one safety verdict, every week. No spam.
Manufacturer videos
Manufacturer images
Manufacturer specifications
- Is Discontinued By Manufacturer
- No
- Item model number
- CP-35hf1
- Date First Available
- October 19, 2017
- Manufacturer
- CARPRO
- ASIN
- B076KSYK6Q
- Item Form
- Liquid
- Scent
- Unscented
- Specific Uses For Product
- Automotive Exterior
- Surface Recommendation
- Paint, glass, plastic, wheels, calipers, wheel wells & all solid vehicle surfaces
- Special Features
- Enhances gloss & smoothness
- Special Ingredients
- Formulated with hydrophilic glass fibers, and silicon polymers
- Contains Liquid Contents?
- Yes
More from CarPro
More in Hybrid Ceramic Spray
303 Products
Graphene Nano Spray Coating
CCT 7.6 · RecommendedHealth 8.0
SONAX
BrilliantShine Detailer
CCT 7.4 · RecommendedHealth 8.8
Meguiar's
Hybrid Ceramic Wax
CCT 7.0 · DecentHealth 8.5
Chemical Guys
HydroCharge SiO2 Ceramic Spray Coating
CCT 6.9 · DecentHealth 9.5
As an Amazon Associate and affiliate partner, CarCareTruth earns from qualifying purchases. Full disclosure
Community
0 postsShare how you use this product
Drop a quick comment or post a full review with photos and a star rating.
Sign in to postNew here? Create a free account.
Top Amazon review
↗External — Amazon's most-helpful review for context.