How To Smooth Out Polyurethane Finish. As with all wood finishes, good results depend on smooth, clean wood surfaces, but this goes double with clear finishes complete each area with long, straight strokes to brush out as many bubbles as possible. How to buff polyurethane to a high gloss. If there's a bigger problem than polyurethane.i sure don't know what it is.
The polyurethane directions say to lightly sand and apply another coat.
Is there a brand you would recommend? Is there a brand you would recommend? When working with any finish. Furthermore, polyurethane application is a very simple procedure that virtually any once the painted surface has been fully finished, consult the sealer's packaging to determine how much drying time it requires. As with all wood finishes, good results depend on smooth, clean wood surfaces, but this goes double with clear finishes complete each area with long, straight strokes to brush out as many bubbles as possible. Is it better to apply with a sponge brush or a bristle brush? Allow the polyurethane to dry for eight hours. They used to be totally smooth down the side, but age has revealed the layered and rough base built underneath.