first time posting here and first time doing any sort of woodworking.
I purchased the Gerton table top from IKEA and it came pretty scratchy. So I sanded it with 120 grit sandpaper and applied 3 coats of polyurethane to it.
For the most part this all seems fine, but the top level feels a bit uneven, and there's some small air bubbles all over the place.
I was wondering what's the best way to smooth out the top level of polyurethane? Should I try sanding it?
I've looked online but found contrasting ideas on what to do, so any feedback would be great to hear.
Thanks!