If you have to work in a smaller room, make sure you open some windows. In rooms with less than ideal airflow, use a fan. A clean work area is preferred, as this will prevent dust from spreading to the Varathane as it dries.
For the smoothest finish, start sanding with 100-grit sandpaper, then repeat this with 150-grit, and finish sanding with 220-grit paper. Depending on the condition of your table, you may only need to lightly sand with a high grit rating sandpaper. Some tables may already have a finish. This may negatively interact with the Varathane. In these cases, sand away all finish before applying Varathane.
If you tend to be sensitive to strong fumes, wear a respirator when working with Varathane. Fumes may persist for some time after the final coat dries.
Clean your brush while you wait for this coat of Varathane to dry so you can use it for the next coat too.
If you find that the Varathane isn’t yet dry, wait about an hour or two before testing it again with 220-grit paper. [6] X Research source
If you notice significant bumps in the dried coat, use a razor blade to shave these off. Be careful not to scratch the wood while doing this. By lightly sanding each coat of Varathane, you’ll also remove any particles that got stuck in it while drying. [7] X Research source
Most oil-based Varathane will only need two coats, though some tables may require three (but no more than three). Water-bases may need up to a dozen coats. [8] X Research source
Follow the label directions on your polish for best results. Generally, you should dampen your cotton cloth before using it to apply the polish.
