I use Tamiya Clear (X-22) to add gloss to my models and protect the decals, etc. But I have a problem, I let the coat dry for 10-15 days, but during the final assembly, my fingerprints damage the finish...........probably I am not using the correct dilution (50% clear, 50% Acrilic Thinner Tamiya X20-A), or probably I have radioactivity on my fingertips?????????????