Our kitchen granite counter top has a small rough spot (about the size
of a quarter) that appears to be slightly below the surface layer.

It is also darker (blackish in color).

Is there a DIY repair to be done here?
Should one fill it with something and then buff?
Alternatively, can one smooth out the scratched depression area and
buff it with something like a Dremel?

What do you folks recommend?

It may be a natural defect you cannot fix, but who can see it, get a pro
out.

blueman wrote:
Our kitchen granite counter top has a small rough spot (about the size
of a quarter) that appears to be slightly below the surface layer.

It is also darker (blackish in color).

Is there a DIY repair to be done here?
Should one fill it with something and then buff?
Alternatively, can one smooth out the scratched depression area and
buff it with something like a Dremel?

One could do either.

Smoothing would require flatness. Once flat, buff with finer and finer
compounds.

If I were going to fill, I'd probably try using polyester resin (as for
fiber glass). Maybe a casting resin. Either would require flatening
which is going to leave scratches in both the filler and surrounding
area. Those would have to be worked out with finer & finer grits, then
buffed with buffing compounds.

All in all, not a job for the casual DIYer.

--
dadiOH
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