Weak beading
Usually contamination.
Rough and dull
Likely worn.
Then decide
Top it up or replace it.
In this guide 4 sections
Swipe to see the whole table
| Sign | Contaminated coating | Worn coating |
|---|---|---|
| Water behavior | Beads less, but improves after decontamination | Sheets even after decontamination |
| Feel | Gritty from bonded fallout | Less slick, rougher paint |
| Gloss | Dull until cleaned | Duller and stays that way |
| Fix | Iron remover, a residue-free wash, or clay | Top-up product, or a new coating |
The signs of a worn coating
GYEON says the main sign is water sheeting instead of beading, along with paint that feels less smooth and visibly lower gloss. All three together, it says, suggest a full recoat.
Contamination comes first
GYEON says invisible iron fallout builds up and gradually cuts water beading, and suggests iron decontamination about twice a year. Gtechniq says a fine film that washing misses can block a coating’s water behavior, and that its EXO can often be refreshed with its iron and fallout removers.
CARPRO’s distributor says some soaps leave residue that temporarily spoils beading, and recommends a residue-free shampoo, an iron remover for fallout and a mineral remover for spots. Adam’s suggests claying at least twice a year; CARPRO prefers an iron remover over clay.
- Wash with a residue-free, coating-safe shampoo.
- Use an iron remover made for coated cars.
- Treat mineral spots separately.
- Check the water behavior again in similar weather.
What wears a coating out
GYEON names brush car washes, abrasive sponges and UV. Ceramic Pro and System X say brush washes void their warranties.
What to do next
If decontamination brings it back, keep up a gentle wash and a coating-safe topper if the maker suggests one. IGL suggests a booster every few months and a professional inspection every six months.
If it doesn’t, GYEON suggests a top-up product for a coating that is a few years old but still smooth, and decontamination, polishing and a fresh coat when it’s older. A shop can tell you which.
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.
- Adam’s Polishes: maintaining a coated carClay, washing and swirls.
- IGL Coatings: maintaining a coatingFirst week, boosters and inspections.
- Ceramic Pro: aftercareCure time, washing and spot cleaning.
