How to remove haze after re-grouting?

[dimitrifdo]

Hello,

I recently had my tiles grout replaced with epoxy (professionally) in a walk-in shower and while the job was completed without any incidents, I've noticed that there is a haze over the surface of the tiles not just in the shower, but elsewhere in the bathroom as well.

I suspect the cement grount dust that was kicked up from the removal just wanted properly removed and is now locked onto the surface of the tiles. Must be a very thin layer of the stuff, but nonetheless it's not great.

Does anyone have any suggestions for removing the haze? I'd need something gentle to prevent damaging the old grout and harming the new epoxy (which may take a while to fully cure).

[MitchellMc]

Welcome to the Bunnings Workshop community @dimitrifdo. It's wonderful to have you join us, and many thanks for your question about removing grout haze.

Is the haze you're seeing present only in areas that were re-grouted, or does it extend to areas that didn't have work completed? What you’re describing sounds like grout haze—a common issue where a thin layer of grout residue remains on the tile surface after grouting. Typically, with standard cement grouts, this haze is removed shortly after curing begins. However, with epoxy grout, the removal process is much stricter—it needs to be cleaned off the tiles immediately as you work. If it’s not cleaned off at that stage, it can be extremely difficult, or sometimes impossible, to remove later.

Given the situation, I’d recommend contacting the grout installer to address the issue directly. 

For now, you could try a mild cleaning solution such as warm water with a few drops of dish soap and gently scrub with a non-abrasive sponge. Avoid anything too harsh or acidic, as it could damage the grout or tiles. If that doesn’t help, the professional installer should be your next step. They may have the tools and knowledge to resolve the issue properly. 

Please let me know if you have any questions.

Mitchell
 

[dimitrifdo]

Thanks Mitchell,

The haze is present across the whole bathroom. Once the original cement grout was removed, we let the floor sit for a while to let the area dry before the epoxy grout was applied. I noticed the haze during this time, so I don't think it would be an epoxy haze.

[MitchellMc]

If this is cement dust from the removal of the previous grout, then it shouldn't be bound to the surface of the tiles @dimitrifdo. I'd try a mild scourer and some warm water. Do a test section to ensure you don't scratch the tiles. Obviously, in the area where the epoxy grout is, you'll want to clean only the tiles and not get water on the new grout until it has entirely cured.

Mitchell