Description : How long will glow paints glow?
Last Answer : Their info says you might need 30 min of light exposure to charge it, then it will glow for 8 hr (although brightness will gradually ... //www.softschools.com/formulas/chemistry/zinc_sulfide_formula/323/#:~:text=Chemical%20properties%3A%20Zinc%20sulfide%20is,to%20release%20hydrogen%20sulfide%20gas.