Sounds like a bit of a scam to me. Others can chime in but I don't think any sealer is permanent. Very easy to seal granite yourself - wipe on, wipe off.

I would ask questions about his guarantee. Also, how long has he been in business, will his business be around to honor his warrantee if the countertop stains in 2,5,7 years?

What does it cost the second time you have to apply the permanent sealer?

I'd skip it and go with the DIY stuff.

When we had our Kashmir Gold fabricated last fall, we had the option to add on a "lifetime sealer with 15 year warranty." The price was $4.00 a square foot. For our 47.6 s.f. this came out to $190.40. For your 77 s.f. that would be $308. I think $770 sounds high.

Getting the sealing done before the counters are installed would be my preference, but I think that price high. Maybe someone in your area has another option for you?

My fabricator did seal my granite before installation. He also recommended a product called Tekon, which was offered by an unrelated company. He said it wasn't necessary for all types of stones, but mine was a little more porous, so it might be a good idea. Alternatively, I could do the spray on/ wipe off myself periodically in the future. He told me that he thought it would be about $200 for my kitchen. According to the other guy's brochure, it can be done any time, not just when granite is new. I'm thinking about doing it. So, while I don't think the concept is really a scam, I do think your offer sounds unusually high.

"lifetime sealer with a 15 year warranty" - sure sounds legitimate to me :-). What redress do you get if the granite stains within the warranty period - do they replace your granite or just refund the cost of the sealer?

$77 sq foot? oh my. That's more than my counters cost!

Why is science not making something to prevent etching? This is where the money is!

$77 sq foot? oh my. That's more than my counters cost!

That's what I was thinking, Bee. I'd rather stick the $770 under my mattress and use it to replace that section of counter when it either gets too stained or I'm sick of it and want something different.

I have never heard for permanent sealing. If is it possible (check with this forum first) then it may be worth it.
My feeling is that it is a scam.

You can buy a bottle of sealer for about $15 and do it yourself every year.

If you can wipe a counter, you can seal :) Takes 10 mins and almost no effort.

You people may be able to design kitchens but you can't do math. $770 for 77 sq. ft. is $10 per sq. ft. Still very high.

LOL, weissman. You just made us all get mathy. Yes, I was thinking $10/s.f. sounded pretty high to me and I think I'll see if I can talk DH into sealing it ourselves. I was reading on this forum about that 511 stuff. Is that what we should be using on this fairly porous stone?

lol. I don't need math skill, reading is more like it. I thought it said "the cost is $77 s.f." and the $770 total was indicating the OP was only sealing 10 sq feet!

I need to get my eyes checked. It's time. For sure.

We went with a "15 year" sealer. (Note warranty only good if applied by an "accredited applicator"). It cost about half what you were quoted for 100 s/f of granite, so your $770 sounds overpriced. DH was surprised to see them apply it, let it sit an hour or so, then just buff it off. DH later found the stuff on Amazon for about $90 (and now feels like an idiot).

Depending on when the granite will need to be re-seald, we'll do it ourselves, and probably use the same stuff.

I just had a very rough estimate of $400 - $600 for sealing 2 newly installed slabs (approximately 60 sq ft). He'll come out to look for a firm estimate. Anyway, this guy was recommended by the stoneyard. He has 30 years of experience and is licensed. He says it should last up to 8 years with proper care. Hope that helps.

Just for reference, the 511 porous plus (there are many kinds of "511", some far cheaper), costs, where I live, approx $90/quart container.

From my reading it was considered "the best", but it sounds as if there's something better out there. It was, fwiw, recommended by a fossil guy turning fossils to art, so that may not be the same heavy-duty need as a kitchen countertop. OTOH you could always just wipe up the wine.

I agree that doing the "work" of sealing is trivial: as stated, if you can wipe, you can "Seal". The hard part, in my kitchen, is moving all the cr@# off the stone. That in itself may be worth hundreds! ;)

You can buy it yourself and do it. It's as easy as wipe on wipe off. It's available at HD or online and at some fabricators. I would NOT pay $770 for sealing. It's sort of like paying $500 for floor mats in a new car, lol. You know you are getting ripped. The way businesses are here today and gone tomorrow a lifetime warranty doesn't really the hold the water that it once did (sadly).

I used Granite Shield. My fabricator would have sealed it for free, but he said with marble, I would have to reseal within 6 months to a year. He was not affiliated with the guy who did the granite shield, but knew him enough to give me his card;) It was between $7-8 sqft. He sprayed it on in a series of sprays and wiped it all off. It didn't change the texture at all. FWIW, I have had it for several months (4) and haven't had a stain - I have found dried on tomatoes and tea, left overnight and was worried, but they wiped right up. I do get etches, but they are minimal and seem to come an go.

It’s possible that the fabricator has access to DryTreat sealer applied by one of their accredited applicators. Dry Treat Stain Proof Plus is designed to last a lifetime and comes with a 25-year written performance warranty.