If you want a glass like finish all the wood pores need to be smooth. Keep adding coats and sanding in between until the pores are smooth. Once you get to that point then put a light thin coat on to finish. Allow each coat to dry completely. Drying will depend on your conditions. All the info as Brad stated from Mar-K is worth reading as Mar-K provides quality American made parts and information also. Have fun and good luck
Dan
