Short answer
Etching is damage to the surface of the glass itself, so no cleaner can remove it. Before assuming the worst, check: most glass that looks permanently cloudy is carrying old, thick mineral build-up that a proper degrease and descale will remove. Genuine light etching can sometimes be reduced by professional glass polishing; deep etching usually means living with it or replacing the panel.
It is the fear behind every cloudy shower screen: that the glass is ruined. Sometimes it is. Far more often it is not, and the difference matters, because one is a cleaning job and the other is not.
What etching actually is
Glass looks permanent, but its surface can be attacked chemically. When mineral deposits and alkaline residue sit on glass for a long time, wetting and drying over and over, they can slowly eat into the surface. The result is a microscopically rough patch that scatters light, so the glass looks frosted even when it is perfectly clean.
Etching usually shows first where water lingers longest: along the bottom of the panel, around the handle, and wherever the shower spray hits most.
Build-up or etching? How to tell
- Degrease and descale properly first. Follow the method in how to remove hard water stains from shower glass. Old build-up can be layered and stubborn, so give it more than one round.
- Look again once the glass is dry. Whatever cloudiness disappeared was build-up. Whatever is left is the candidate for etching.
- Check the pattern. Etching tends to follow the shape of the old deposits: the same drip lines and splash zones, fixed into the glass.
If the cloudiness survives a thorough descale unchanged, it is very likely etching.
What can and cannot fix it
| Option | What it does | When it makes sense |
|---|---|---|
| Professional glass polishing | Polishes the surface back with a fine compound such as cerium oxide | Light etching, on a panel worth saving |
| Replacing the panel | A fresh start | Deep etching, or when a polishing quote comes close to the cost of new glass |
| A water-repellent coating | Makes water bead and run off from now on | Stops things getting worse; it will not remove etching that is already there |
Be wary of any spray that promises to remove etching. If the damage is in the glass, something has to physically take the surface back, and that is a job for a professional.
How to stop it happening
- Deal with build-up early, while it is still sitting on the glass rather than in it.
- Dry the glass after showers. A squeegee takes seconds; see the 30-second routine.
- Never use abrasives. Scratches hold deposits and make the damage worse.
- Seal it, so water runs off instead of drying in place.
Etching and the Infinite Coatz kit
The kit's first steps remove everything that sits on the glass, which is where most "permanent" cloudiness turns out to be. The final step seals the surface so water beads instead of spreading, protecting it from here on. What it cannot do is undo damage already in the glass: deeply etched glass can keep a faint shadow even when everything on top of it has come off. If you are not sure which you have, send us a photo before you order.
