can masonite be restored by paint?

Answer 1

I'm not sure what you mean by 'restored'.

I tried removing wallpaper from masonite once....only once.

It left the masonite torn and wet and what a mess.

After it dried, I troweled on a coat of spackle, let it dry, sanded and kept repeating allowing each application to dry before putting on the next until it was as smooth as I could get it. When all layers are thoroughly dry, apply a coat of stain blocking primer. Don't use alcohol base, use latex base. Allow to dry and apply paint.

Mine turned out great, no one ever notices it.

Answer 2

prime, skim coat, sand, prime, paint.