It is a fact that clouds block ultraviolet rays, particularly the more potent UV-B rays that we use to gel inks using a flash unit. I know you are wondering how clouds got into the screenprinting variables, but read on.
About Bill Hood 413 Articles
Bill Hood is an International Consultant in the Screenprinting Technologies, focusing on consistency, predictable outcomes and reproducible results. He is the author of over 50 books on the screenprinting technologies as well as thousands of technical articles, many of which are available at www.screenprintbooks.com online. He writes for Solutions Journal Magazine and other trade publications, is a speaker at various events and has judged international screenprinting competitions. He can be contacted through his website at www.billhoodconsulting.com online.