At the beginning of the architectural glazed U-shaped glass is a monochrome full-painted toughened glass, and then gradually to show the color of repeated printing of marble or granite-like appearance of the glazed toughened glass. At this time the curtain wall design is also more radical, mostly only the use of a single layer of colored glaze toughened glass. The reason for the use of colored glaze toughened glass is that the color of colored glaze is better than that of natural stone. It can be repeated in large quantities and does not show the phenomenon of obvious color difference in large engineering projects caused by mineral reserves, and low price, light weight, high strength, good safety. This stage is only the primary stage of colored glaze.

In the second stage, after some architects realized that imitation was always bad and that invention was the only thing that had life, they went on to understand the art of glazing, screen printing glaze toughened glass with simple geometric patterns such as stripes, dots and blocks are gradually introduced. The utility model is mainly used for the floor slab and the position of the column, and plays the role of covering and obstructing the visual field and improving the beautifying appearance. At this point, it's still a single-story toughened glass. This phase has moved away from simulation and into the early stages of free play. However, because architects do not fully understand all the processes of glass deep processing, so this stage is mainly for the application of glazed toughened glass products, further complex processing of products are not many.

On the basis of the second stage, the product mode is extended to the composite glass modes such as color glaze coating, color glaze hollowness, etc. . In practice is to expand the scope of glass products, in a good decorative function of the foundation, but also began to pay attention to the energy-saving glazing U-shaped sunshade function.

With the overall composite stage of color glazing is now gradually improved in the insulating glass, because people pay more attention to the overall effect of glass curtain wall. And the building itself structural components such as beams, columns, plates and tubes need to be covered up, at least part of the hiding, beautifying the appearance, highlighting the overall design effect. At this point, the use of demand separation window of the insulating glass and visible light transmission and reflection of the outdoor color of the detailed numerical value, calculated to confirm the cover rate, point size, color, and so on, in addition, for the building exterior glass, properly and skillfully designed patterns and colors, in a considerable number of cases can be used to replace frosted glass glaze, even the effect of stained glass. In the face of the color float glass is not many ideal, color glaze u-glass can give designers more inspiration and support. The colored glaze usually can not be located outside the exterior, as far as possible in the sealed cavity of insulating glass or laminated glass indoor surface. This is also a maintenance of the glaze.