Hi guys,
I seal the new wood with two coats of shellac sealer, using methalated sprit and blond shellac flakes. I then use Manns Polyurethane Varnish. The drying time can vary but usually touch dries within 30 mins. Three coats are applied but only sanding with micro paper on first and second coat. I find that leaving the top coat to harden for a few hours, the final finish is more glossy. I finish off the top coat by polishing with Novus 2 polish.
Kelvin