I’ve got another odd one to add to the list now. I rebuilt my patio table It’s a rather large 5’x5’ bar height table. Had it for about 15 years but the shale/tile top had gone beyond repairing again. So I salvaged the ornamental iron legs and built a now steel frame and support and had it powder coated. But the pain was I poured a concrete top for it. Made a stainless steel pan only 3/4” high and filled it with 8800psi countertop concrete. Let it cure for 3-4 weeks, stained it and just put the fourth and final coat of epoxy sealant on it tonight. Every time I turned around on this project something went wrong. First I kept the concrete damp for about a week....should’ve kept it wet for the full three weeks. Let it dry out over a weekend (did it in my shop at work) and when I came in Monday morning it had curled upwards so that the 4 corners pulled up out of the pan.. Put wet towels on it and it would lay down flat within an hour but whenever let it dry it would curl back up. The staining was pretty uneventful but I intended to make it look like granite or marble.......wrong. It looks pretty cool and natural but definitely not like I envisioned before. Anyway, I cracked it across the middle when moving it but noticed that helped the corners sit back down flush so I cracked it the other way on purpose. Then the epoxy...FML. I rolled on the first coat like the directions said and got a ton of air bubbles that took about 1.5 hours to pop. Looked great when I left for the day. Next morning it had a ton of bubbles again, most coming out of the 4 major cracks but some inexplicably out on the flat surface. So I wet sanded it to remove all the bubbles and put another coat on. Figured Id use a flat flexible spreader to reduce the bubbles but still got quite a few just out of the cracks this time. It was looking pretty good but I had to sand out those bubbles and planned on one final coat of epoxy. Figured I’d brush on a thin coat just to shine up the sand marks and I’d be done. Well the stuff is supposed to kind of self level but I put it on so thin that the brush marks stayed in it. So tonight had to wet sand the whole thing again, used the flat spreader method and put the last coat of epoxy in it. It looks really good, finally, and I think I’m done with it.
My advice- don’t ever try to pour concrete that thin and you can watch all the YouTube videos you want but those guys typically know what they’re doing and make it look easier than it really is. It came out great in the end but it was a lot more work and there were little problems every step of the way. I originally wanted to get a pice of granite or quartz cut to fit it and just drop it in. The $1200 price tag for that headed me to the concrete solution. Still got about $500 in it but it should be very durable and last forever. I’m glad now I did it but it was about a two month process. One things for sure, nobody has a table remotely like it.