Richply strongly recommends that any wood exposed by cut edges or holes should be re-sealed or painted.  Re-sealing cut edges helps inhibit the absorption and migration of moisture and alkalis from the concrete mix into the panel edges.  Without re-sealing, cut edges typically swell, break down faster, and become weaker which serves ultimately to shorten the expected service life of the panel. As a recommendation, 100% acrylic house paint works well for this application.  The solids content of the paint is important as the more solids you have the better holdout you get per application.  Since most edge sealing that takes place in the field or at the mill level is done in a single coat application, it is better to have a higher solids content product that will provide sufficient single coat coverage.  Lower cost acrylic house paints tend to have lower solids contents in the range of 25 to 35% by weight, and these products are not capable of good single coat coverage, particularly when they are roll or brush applied.  Paints with solids contents closer to 50% provide the best single coat coverage.