Can you use to much ProSeal? I trying to be neat, but I still get this stuff everywhere. I've clean off any areas outside tank and in areas that will be assembled later, but do I need to clean off spots and smears on the inside tank walls ? I ended up with blobs on the rivets and the Popsicle stick not the neatest thing to work with. Bottom line I've got the ribs and rivets sealed it just doesn't look pretty. Is that a problem???