How to Apply a Natural Finish on Close Grained Hardwood Examples: Maple, Birch, Beech, etc. How to apply this finish: 1. Sand the project up through the grits until at least 220-grit a. It is a good idea to sand pieces that will be hard to reach before assembly. 2. Wipe the project with mineral spirits to check for glue splotches 3. Use a good quality Danish Oil type finish a. Flood it on, let it sit and wipe it off b. Let towels dry flat and dispose of properly! 4. If you have any nail holes, c