When can I finish the bottom of a giant slab?

If you’re that scared, wait another day with a fan on it, then flip it over with a blanket on it. It can be dry for practical purposes even if its still curing.

I always finish the bottom first because I’m paranoid about thus as well. I agree with the blanket trick. Have used it before. Use one you don’t care about because it is bound to get drips of finish on it.

Brian

-- Part of engineering is to know when to put your calculator down and pick up your tools.

Thanks for the replies. I’m mostly gun-shy because the indentations these pyramids left earlier since the top is so heavy. Then after another piece was finished I used the rubber pads themselves but they left a crosshatch pattern in the finish.