The method used depends on the size of the wood you are treating. Smaller pieces can be soaked in Polycryl, while larger pieces can be treated by brushing Polycryl on.
Keep in mind that most of the absorption is through the end grain. If you are treating bowls, pour the first diluted solution into the bowl and periodically add more Polycryl to the solution until the desired concentrate has been reached. Be sure to keep the bowl covered with plastic during treatment to prevent evaporation. To prevent mold growth, do not leave the wood covered in plastic longer than 7-10 days. Remove the plastic when drying the wood.