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Paints aren't really made to take heat and/or weight. So, for instance, a flower vase in the middle of the table might stick. A hot cup or plate would probably do the same. Varnishes work better because they haven't got pigments plumping them up and may are designed for furniture use.
I have seen a two-pack system where you spread it out across the table of whatever and it finds its own level and hardens like glass. You can cover trompe l'oeil or colour the resin to get the effect you want. If you look at Bar Top Epoxy or similar on youtube you'll see what I mean.
I really don't think paint is the way to go.
OT question of my own:
I have a dining table I am considering painting. Thinking two coats of primer, sanding in between and a few top coats of oil based satin wood as per what I've done for my doors and door frames.
Is an oil based satin wood paint durable enough for day to day dinner table top duties? Or should I consider a different type of paint?