I recently washed my car for the first time since using Gloss Coat. I was kind of surprised the beading wasn't better. Especially on the doors. I only put one coat and I think i did really light as i only used 3 ounces on a Porsche 911. Should I put another coat on? If so, do I need to do a alcohol wipe first or can I just apply it? Does the alcohol remove the first layer.