Re: HELP! I need to refinish old farm table top!
I'm not sure Acrylic Urethane would be a good choice for this. It's very hard and I believe you will develop cracks over time because of wood movement. I would recommend that you lightly sand the top with 220 grit sandpaper, clean with paint thinner and apply a couple coats of high gloss poluretheane, sanding between coats with 220 grit sand paper. Then apply a coat or two of semigloss or satin polyuretane. To refreash you will only have to sand with 220 grit and apply a new top coat of poly ever 2 or 3 years. This worked very well when our children were still at home.
Be sure you live your life, because you are a long time dead.-Scottish Proverb