I just finished an original design gladiator helmet in EVA foam (my first try) and thought that I had the seams ready for the Plasti Dip. After applying I'm just not satisfied with the seam lines. I'm looking for recommendations for whatever product(s) that I can use to go back over the seams and fill the gaps so that I can put the final coatings of Plasti Dip on. I used contact cement for the joint lines.