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Unread 07-14-2021, 10:06 PM   #7
Tool Guy - Kg
Moderator -- Wisconsin Kitchen & Bath Remodeler
 
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Join Date: Feb 2005
Location: Oak Creek, WI
Posts: 22,847
Yes, good news! Clean off that build-up to restore your tiles.

Attempting to seal glazed porcelain is pointless. Nothing positive can occur from trying to do so.

I’ll be straight to the point on the sealer: TileLab sealer is one of the least-solids/weakest sealers I know of. If you want to seal your grout, fine, but you might want a better quality sealer in case you actually need it. I personally wouldn’t bother due to the lack of benefit from doing so. But understand that NO penetrating sealer will protect from acidic urine. Sealer doesn’t work like that. The only job that sealing helps with is to buy you a few minutes of time when you accidentally spill a potential staining agent to clean it off before it becomes permanent.

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