Glow in the dark powders for coatings: resins and varnishes first: the resin used should have good light transmittance, and because luminous powders are weakly alkaline substances, the resin is preferably neutral or weakly alkaline. To make water-based coatings, you need to choose waterproof luminous powder.

The second is the choice of additives: the additives in luminous coatings are mainly composed of dispersants and anti-settling agents. Heavy metal compounds cannot be used as additives. Glass or ceramic containers should be used in the preparation of the coating. The particle size of the luminous powder should be as small as possible; the ratio is about 30% to 60%. When preparing the coating, it must not be ground. High-speed stirring methods should be used. For 3.6-4.0, it is easy to sink when the coating is formulated. By using the anti-settling agent, the storage time of the glow in the dark coating can be improved.

Ceramic and Glass luminous powder: First is the size of luminous powder; generally, 110 luminous mesh powder is the best. Secondly, according to the time in the actual production process, select suitable materials, and stir the additives thoroughly (metal containers cannot be used, so as to avoid blackening for a long time), and after full fusion, use the 80-mesh screen to print if you want high brightness. If the light emission time is long, you can print more times, two to three times is the best.

Thirdly, if it needs to be mixed with lumps or transparent materials, the ratio of luminous powder and lumps or transparent materials is 1: 1 or 6: 4 or 6:10, and you can debug according to the effect you want. The problem often encountered when burning out the finished ceramic is: bubbles appear. This problem is generally the problem of the combination of additives or lumps and the chemical stability of transparent materials. The ratio can be modified, or the additives can be changed.

Luminescent ceramics