I painted 3 Atlas GP-9's with Scalecoat II C&O Blue, S2091. After 24 hours, the paint is tacky and is flat, no gloss at all. I used Scalecoat II S2010 on some open hoppers at the same time, and the black is glossy. Any ideas on what is wrong? Can I spray gloss cote over the paint without any problems. I usually coat with dull cote after decaling. Thanks in advance.