Clean first
Contamination looks like failure.
Read the signs
Spots, smears and sheeting mean different things.
Call the installer
Warranties often have conditions.
In this guide 3 sections
Swipe to see the whole table
| What you see | Usually | Start here |
|---|---|---|
| White or gray rings after washing or rain | Mineral water spots | Water spots |
| Dark patches or rainbow smears after install | High spots: unleveled coating | High spots |
| Spots or streaks in the first days | Water or soap before the coating cured | Cure time |
| Water sheets instead of beading | Contamination, a topper, or wear | Is my coating failing? |
| Swirls under the coating | The paint wasn’t corrected first, or wash marring | Removal and correction |
Pick your problem
Each guide below uses what coating makers say in their own instructions and care guides, with links. We haven’t tested the products named.
Before you blame the coating
Wash the car gently with a coating-safe shampoo, dry it and look again in daylight. A lot of “failed” coatings are coatings covered in road film or minerals. Makers including GYEON, Gtechniq and CARPRO say contamination cuts water beading and that decontamination often brings it back.
Ceramic Pro and System X both say a coating doesn’t stop hard-water spots, rock chips or deep scratches. If that’s the problem, the coating may be doing exactly what it can.
If a shop did the coating
Call the installer before you try strong chemicals or polishing. Many coating warranties need inspections or approved products, and some, like Ceramic Pro’s and System X’s, say brush car washes void them.
Professional installation
Ask shops what’s in the price
Find installers near you, then ask about the exact product, the prep and which surfaces get coated.
Sources
Product claims come from the manufacturers’ own instructions, linked below. Prices come from shops’ published price lists.
- GYEON: how long a coating lastsSigns of wear and contamination.
- Gtechniq: EXO questionsContamination, refreshing and removal.
- CARPRO (US distributor): maintaining CQuartzSoap residue, iron and mineral removers.
- Ceramic Pro: what a coating does not doWater spots, scratches and rock chips.
- System X: aftercareDrying, spots and the first two weeks.
