Answer
May 25, 2020 - 01:46 AM
AFM Safe Seal was designed as a penetrating sealer. It will not work over paint. However, our Hard Seal is a topical sealer that can be applied over painted surfaces. If you are trying to block VOC or formaldehyde emissions of the MDF, it's always best to paint the edges and the back if they are accessible. If they are not accessible, then do not expect 100% results.
