Planning to re-paint aging Awlgrip on the cabin top and deck this summer again using Awlgrip. Several years ago I replaced the port lights using Dow 795 for bedding and water continues to bead where excess silicone was wiped off the paint around these windows. Think Allprep T0008 will remove this contamination after the surface is thoroughly sanded? I test sanded a small area and find that the 795 appears to have penetrated into the top coat of paint as water continues to bead up. Any thoughts or experience appreciated.