Scratch that. On my parents bbq (concrete surface ) we used 511. Didn’t recall till I saw the post above. It’s now been 10 years-ish and it’s held up as far as I recall. They live at the ocean so they have regular moisture to further attack it.
What kind of grinding wheel do you use to remove the flaking previous sealer? I need to reseal our concrete BBQ counter top,but it definitely needs to be prepped first.
Kind of depends on what the table looks like now. We use diamond grinding wheels. You just want to be careful you don’t grind down too far and start exposing the aggregate. That will give you a salt and pepper finish. Not a bad look if that’s what you want but if the top is a cream finish now you just want to grind off a little to get the coating off but not expose aggregate. You can get them from Home Depot but they typically only have 2 disk available, 1 with a couple diamond segments and 1 with more diamond segments. The problem with those wheels is they are very aggressive. They are probably around a 16-20 grit diamond. For prep like tables and light sanding we will use much higher grit disks with lots of segments, around 80-100 grit. I would even consider just using a normal hand sander with low grit sand paper to see if you can get the coating off and a little abrasion to apply a new coating
That could work. Looks like that’s a natural look acrylic sealer
Thanks for the recommendation! The previous sealer has almost all flaked off..I can pretty much run my hand on the remaining sealer to knock it off..except for the spots in the not so direct sun exposure.
