I have no experience with water based poly so forgive my ignorance. I decided to try it on a project and really like the drying time and how quick it lays out on the surface. The problem came after 4 coats. I wanted to smooth out some spots so i went to lightly sand with 220 and immediately went right through the stain and all. It had sat for about 30 hours or so. So the only thing I can think of is that the coats are really thin or it didn't cure long enough. I brushed it on because i couldn't get an acceptable spray with my equipment.
Any thoughts?
Any thoughts?