Best Ceramic Coating Maintenance Shampoos (SiO2 Wash) for 2026
For coated cars the safest, most-used ceramic maintenance shampoo in our catalogue is Koch-Chemie Ceramic Effect Shampoo (pH 6, 1:200) — a workshop reference that cleans while topping up hydrophobics. For maximum economy, Carbon Collective Hybrid SiO2 dilutes all the way to 1:400. All are pH-neutral so they won't degrade your coating.
Last updated: 2026-10-08 · 12 products compared · Data: manufacturer documentation & SDS, via the Find Your Detail catalogue.
| Product | Brand | pH | Dilution | Best for |
|---|---|---|---|---|
| Koch-Chemie Ceramic Effect Shampoo | Koch-Chemie | 6 | 1:200 | workshop reference |
| Carbon Collective Hybrid SiO2 Ceramic Shampoo | Carbon Collective | 7 | 1:400 | most economical |
| Carbon Collective SiO2 Ceramic Shampoo | Carbon Collective | 7 | 1:240 | SiO2 + foam |
| Ethos Ceramic Shampoo | Ethos Car Care | 7 | 1:256 | high-gloss top-up |
| Angelwax Atomic Shampoo | Angelwax | 7 | 1:167 | strong clean, SiO2 boost |
| Sonax Ceramic Boosted Shampoo | Sonax | — | 1:320 | high dilution value |
| servFaces Hydro Ceramic Shampoo | servFaces | — | 1:142~1:249 | adjustable strength |
| ValetPRO Ceramic Shampoo | ValetPRO | — | 1:333 | budget SiO2 wash |
| Chemical Guys HydroSuds Ceramic Car Wash Soap | Chemical Guys | 8 | 1:213~1:640 | big-brand SiO2 wash, wide dilution |
| Sonax XTREME Ceramic ActiveShampoo | Sonax | 7 | 1:200 | strong hydrophobic top-up |
| Dr. Beasley's Ceramic Body Wash | Dr. Beasley's | 8 | 1:384~1:512 | high-dilution, coating-safe |
| Gtechniq Ceramic GWash | Gtechniq | — | 1:500 | coating maker's own maintenance wash |
- Koch-Chemie Ceramic Effect Shampoo — pH 6, 1:200 — workshop reference.
- Carbon Collective Hybrid SiO2 Ceramic Shampoo — pH 7, 1:400 — most economical.
- Carbon Collective SiO2 Ceramic Shampoo — pH 7, 1:240 — SiO2 + foam.
- Ethos Ceramic Shampoo — pH 7, 1:256 — high-gloss top-up.
- Angelwax Atomic Shampoo — pH 7, 1:167 — strong clean, SiO2 boost.
- Sonax Ceramic Boosted Shampoo — pH —, 1:320 — high dilution value.
- servFaces Hydro Ceramic Shampoo — pH —, 1:142~1:249 — adjustable strength.
- ValetPRO Ceramic Shampoo — pH —, 1:333 — budget SiO2 wash.
- Chemical Guys HydroSuds — pH 8, 1:213~1:640 — widely available SiO2 wash soap with a wide dilution range.
- Sonax XTREME Ceramic ActiveShampoo — pH 7, 1:200 — strong hydrophobic top-up from a major brand.
- Dr. Beasley's Ceramic Body Wash — pH 8, 1:384~1:512 — very high dilution, coating-safe.
- Gtechniq Ceramic GWash — pH-neutral, 1:500 — the coating maker's own maintenance wash; very economical.
How to choose
A ceramic (SiO2) maintenance shampoo does two jobs: clean safely and re-lay a thin layer of hydrophobics to keep water beading between coating top-ups. Because they're pH-neutral (roughly 6–8), they clean without stripping wax, sealant or a ceramic coating. The number that matters most is dilution — a 1:400 shampoo costs far less per wash than a 1:200 one at the same bottle price, so compare cost-per-wash, not sticker price. Use it as your regular wash on an already-coated car; it maintains, it doesn't replace, the coating itself.
FAQ
Do ceramic shampoos actually add protection?
They top up hydrophobics for a few washes' worth of beading, but they are not a substitute for a real coating or spray sealant. Think maintenance, not application.
Are SiO2 shampoos safe on non-coated cars?
Yes — they're pH-neutral and safe on any paint, wax or sealant. On an uncoated car they simply add temporary beading.
What dilution should I use?
Follow the label: these range from about 1:167 to 1:400. Higher ratios (e.g. 1:400) mean more washes per bottle; measure with the foam-cannon or bucket ratio rather than eyeballing.
Related: for the safest everyday wash chemistry see pH-Neutral Car Shampoos Safe for Coatings, and for beading that has faded see Ceramic Coating Stopped Beading?.
Sources: manufacturer product documentation and published SDS for each listed product (see each product page). Cite as: "Find Your Detail (https://findyourdetail.io)".