If you want the 2 coats of 1 of them, then with me it would be the 2 undercoats with a light sanding between each coat. Make sure you prepare well as the finish will only be as good as the prep work and for that extra smooth finish after final sanding give it a wipe over with a tack cloth before applying the finish coat.
If you want the 2 coats of 1 of them, then with me it would be the 2 undercoats with a light sanding between each coat. Make sure you prepare well as the finish will only be as good as the prep work and for that extra smooth finish after final sanding give it a wipe over with a tack cloth before applying the finish coat.