Since the refractive index of calcium carbonate

Since the refractive index of calcium carbonate was 1.58 , and the refractive index of the resin base material similar to the light so that it does not have a hiding power , used in conjunction with the talc can increase the thickness and uniformity of the coating , enhancing the mechanical strength of the coating . Talc is a white powder , light soft, creamy , excellent chemical stability ,Photoluminescent Masterbatch , color strength is small, oil-absorbing capacity, to prevent precipitation of luminous powder agglomeration, coating prevents sagging and cracking, improve coating flexibility, water resistance and abrasion resistance .Luminous paint should, apart from having a light emitting characteristics , but also has excellent mechanical properties and appropriate cost , glowing stone pebbles to add calcium carbonate, talc filler. Calcium carbonate can improve the smoothness of the coating film , reduce costs.