Filling Granite Countertop Pits

Harbor Stone

Harbor Stone


I have used a penetrating sealer on my granite countertop, but what can I use as a surface sealer to fill in all the pits in the stone?


Thanks for the picture! Most granite slabs won't have pits, although any slab of granite could develop a few pits over time. Typically not a big deal.

You can do this granite countertop maintenance / repair and fill small pits yourself with the Granite & Marble Repair Kit for chips and pits.

Pros will use an epoxy or resin adhesive for granite repair of pits, but they can rarely get an exact color match. Thus, the repair is always visible.

The above product is much easier to use than an epoxy (don't need a pro to do it) and dries level and clear, so you can't even see the repair!

A granite that already has pits at installation is likely a bit prone to pitting, so you may have to perform this repair as regular maintenance.

Fortunately, this chip & pit granite repair kit blends the color and pattern perfectly (essentially invisible), so it will help maintain the beauty of the granite over time.

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Pitting all over
by: Matt V.

5 years ago we bought kitchen cabinets, granite countertops and granite island from a home remodeler and it was installed by their professionals.

The granites were nicely polished and 100% smooth with no pitting. We maintained it regularly.

There are no stains but pitting is now getting bad. We complained and the granite manufacturer sent a pro over and he filled the larger pits (1/4 inch) with epoxy and torch. (He charged us $100 and said if we wanted it all done it would be well over $1,000!

His work came out fine but small pin holes are all over the island and larger pits are surfacing over the counter tops.

He said it's because we were banging on the counter top which we weren't - The island serves as a table. No banging here! FYI, there are no kids.

I suspect the original polish they did is wearing off. There's one small top we don't use and it's perfect. What do we do?

The installer says we're at fault. The granite manufacturer said we didn't maintain it properly. The home remodeler said it's not his fault. He never heard of anything like this...bull. Very frustrating. What shall I do?

==== Countertop Specialty comment:

It's commonly known in the stone industry that granite can develop pits over time.

Granite is composed of many "grains" of various minerals and crystals. Over time with normal use that involves some physical impact and water exposure some of these minerals can pop out.

Pitting will occur in greatest concentration in the areas of greatest use. Usually, that is around the sink. Some granite colors / varieties are worse than others.

The small pinhole pits are difficult to deal with. Not much can be done with these. But the "normal" pits that are 1/16 to 1/4 inch in diameter can be easily filled using the Pit Repair Kits.

These use a clear acrylic gel that dries quickly and allows the natural color and pattern of the granite to show through so the repair is nearly invisible.

I get that it is frustrating that the contractors, etc. are all passing the buck, but in fairness, this is not a "defect" of the granite. This is normal for granite.

It is not because the "polish is wearing off". There is nothing "on" the granite to wear off.

The polish is not something that is applied to the granite countertop. The polish is an integral part of the granite slab itself. The polish is created by grinding and smoothing the granite slab surface on huge machines.

The shine may get duller over the years as the smooth shiny layer of the finish can get worn away, but we're talking like 20 years (if then) and not 5. Granite is so hard that wearing away the polished layer is rare.

Overuse of harsh chemicals or cleaners could accelerate that wear, though.

Again, many granites do not pit or maybe only get 4 or 5 over many years, but some granites develop pits all over. Just need to fill them.

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