Densifie the area your talking about and let it set overnight or 24 hrs at-least. I use ashford formula. Wet area in front of grinder with a mist of water weting on concrete... load grinder with 120 metals or sti grout pans. Cast out grout…granquartz has a good polishable grout…

https://www.granquartz.com/prospec-level-set-polishing-grout/product/0/2060

broom it out over the area and then mist over it latex mixed with water 30% latex the rest water, then densifie the area again after you ran the grinder over the area and grouted the floor and let it sit a couple hours..Then proceed.

This video below kinda give the jest of it.

https://www.youtube.com/watch?v=XF_KsgwApns

Good luck

On Feb 28, 2018, at 11:28 PM, Stephen Webb <stephen@newlifemarblerestoration.com> wrote:

Hey All, Ive got a small 500sf slab I polished and Half polished out great and the other half just wont polish as nice. The bad area seems more opened pored. Could there be a difference in the porosity between the two areas?(same pour) Is there any tricks to deal with more porous areas that wont pop as well as the rest?

thanks

Stepheh

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