Coating composition for the inner wall of cathode-ray tube.

摘要

Coating composition for the inner wall of a cathode-ray tube comprising an aqueous dispersion medium containing potassium silicate, a dispersing agent and graphite particles or a combination of graphite particles and metal oxide particles or metal carbide particles suspended therein, characterized in that the molar ratio of silicon dioxide to potassium oxide (SiO2/K2O) in said potassium silicate is in the range of from 4 to 5, and the obtained coating film is characterized in that the adsorption quantity of moisture and gases is small and adhesiveness is excellent.