It seems I saw something on the internet or perhaps it was on TV about someone "thinning" some seam sealer just for this purpose. As I recall, some sealer was thinned out using perhaps acetone or lacquer thinner and then applied using a syringe type deal. When I did my Cuda, I just used a tube and caulking gun and as I advised, cut a small hole in the tip to allow me to do all of the tight spots.