... 4) 11 years' trading experience. Name:Photoluminescent Safety Sign Material:photoluminescent ink and Aluminium/PVC Shee, etcGlow Color range ... than 8-12 hours in the darkness.2)Photoluminescent sign can be used for directional signs, building paltes, door ... / rigid board, photoluminescent Masterbatch and various photoluminescent safety sign, etc.As a certified company of ISO9001:2000 International ...