Hi Tony
The dye still looks impregnated in the concrete. Use 60 grits sand screen with a 20” red pad and buff and screen the whole floor.
Vacuum and deep mop floor with denatured alcohol
And then apply 2 coats of water base sealer and the 2 coats of of high traffic urethane.
Below are before and after pictures of residential stained floor I screened and resealed

Let me know if you have any questions

Richmond Aidoo
Nadoka Luxury cleaning
845-201-0080

> On Aug 7, 2025, at 4:54 PM, Tony Deluna <tndeluna@gmail.com> wrote:
>
> Hey Pro’s 3 years ago we polished this concrete floor, applied color dye and finished with Ameripolish 3D SP.
>
> The School maintenance used an auto scrubber with an unknown pad and blotched up the finish.
>
> Would you recommend first stripping the floor or clean re-apply Ameripolish 3D SP. a few times & burnish?
>
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> Tony DeLuna
> Cell 925-437-1559
> Biz 925-625-9625
> www.PatriotStoneRestoration.com