Abstract: This disclosure is directed to a method of obtaining coated glass articles having a desired shading coefficient with the most economical thickness of coating composition applied thereto. The method taught is characterized by the following steps. A plurality of glass samples are coated with a selected coating composition. This coating operation is carried on the various glass samples in a manner such that the glass samples have different coating thicknesses of the selected coating composition. The thickness of the coating composition on each glass sample, along with the resulting shading coefficient, is measured. The correlation is made between the thickness of coating and the resulting shading coefficient. The correlation is one which will define two separate functions interconnected by a transition point. A first function (1) is one in which the shading coefficient decreases with increasing coating thickness.

Abstract: This specification discloses a method of forming a high performance reflective film on a glass sheet. The glass sheet is one which is at a temperature sufficiently high to pyrolyze an organic based, metal containing glass coating composition coming into contact therewith. An organic based, heated pyrolyzable, dual metal containing glass coating composition is directed against a surface of the heated glass sheet. The dual metals in this coating composition are cobalt and iron. The dual metals are present in the coating composition by weight percentage of dual metals in a range from 97% cobalt/3% iron to 90% cobalt/10% iron, preferably 96% cobalt/4% iron to 92% cobalt/8% iron, and most preferably 95% cobalt/5% iron to 93% cobalt/7% iron.

Abstract: This specification discloses a method of forming a decorative surface on a body of glass. The steps involved in the method are initiated by a step of forming a metallic oxide film on the surface of the body of glass to be decorated. At least the portion of the body of glass having the metallic oxide film thereon is immersed in an etchant acid bath. Thereafter the body of glass is removed from the etchant acid bath when the etchant acid bath has reacted with the metallic oxide film to create a decorative surface on the body of glass. The decorative surface includes a plurality of elongated lines generally intersecting with one another. In normal cases the metallic oxide film is a multicomponent metallic oxide film.