Hi. We've got pre-primed MDF skirting, which we've glued and nailed (nail gun) to the wall. The holes were filled with trade 'one-fill' poly filla. The problem is, after the first coat of water-based satin wood paint the areas with polyfilla can be seen in certain lights ("flashing"). Should we have 'spot primed' this (not 100% sure what that is anyway)? Or will it be fine with another coat of the satin paint?
Last edited: