I am going to re-purpose an antique dresser into a bathroom vanity. I'll set a sink into the top and plumb it. My question is what type of finish should i use on the top. Obviously it must be water proof, durable and clear. I'm thinking of spar varnish - is there another product i should consider? Thanks!

So we are starting a kitchen remodel and I've pulled off some paneling, and trim and the when pulling the last piece of door trim off some paint started coming off with the trim. After removing the trim I started to scrap some of the paint to make sure I got all the loose paint off and here the paint literally started coming off in huge sections like sheets of paper. Luckily this wall is mainly covered with cabinets so I ended up removing pretty much all the paint on that wall. I didn't have any issues on any of the other walls but now I'm super paranoid that the paint is going to fall off all the other walls moving forward. We did have another spot about the size of a basketball that started to "alligator" on another wall about a month ago which seemed weird to me that I painted the walls 6 years ago when we moved in. So I will be repainting all the walls a new color with the model and I'm wondering if I should be worried about paint peeling in other areas or should I do some more prep work of a sort, and what I should do? I think the issue may have been that they originally had wallpaper and then it seems like they didn't do enough prep work before painting over that as when the paint peeled off it pulled all layers with it? Plus the wall is very slippery under it as well.[ATTACH]76360[/ATTACH] Also I have patching to do on the wall that has all the paint off and I'm wondering if it would be smart to prime the wall before mudding it or does it not matter? Thanks in advance everyone!