It is well known that epoxy sewing agent can be used in outdoor environment to ensure that the color does not change color for a year is not easy, it can be said that the possibility is zero, because epoxy resin itself is not resistant to yellowing, Brick colored sand products are one of the most important products developed by the Italian headquarters, which is super resistant to yellowing, and solves the problems of ultraviolet radiation discoloration and high-temperature and low-temperature cracking and degumming. The product aggregate is replaced with high