... the dark glass mosaic. Glow 8+hrs. Acid, water resistant. Colors selectable. ISO9001, RoHS, SGS norms matched. 1, DescriptionGlow in the ... 2, Material & ApplicationMade of glass and photoluminescent pigment. The mosaic can be used in ... plate, photoluminescent films, photoluminescent shoelace / strings, photoluminescent glass, photoluminescent cup chap, photoluminescent mosaic, photoluminescent stone ...