In recent years, with the improvement of people security awareness, the flame retardancy of heat preservation material requirement also more and more high, make the traditional heat preservation material have to add harmful to human body and lasting flame retardant. However, the flame retardant glass wool and rock wool can produce a large amount of fine dust during installation and use, causing discomfort to the human body. Yadina production of melamine foam resistance to high temperature (240 ℃ high temperature peak), coefficient of thermal conductivity is 0.035 w/(m.k), flame retardant B1 level (flame retardant), and easy processing (does not produce any fiber fines) features, in the heat preservation aspects than the traditional heat preservation material, such as glass wool, rock wool, polystyrene, polyurethane foam, etc. The Yadina mylamine foam can be machined into a hot layer material for pipeline protection. While providing insulation, energy losses are controlled, maintenance is simplified and noise levels are reduced. Its ability to withstand high temperatures (long time working temperature is about 150 ° C, short-term peak temperature can reach 240 ° C). Ability to withstand low temperature (working temperature is about 150 ° C for a long time, short-term peak temperature can reach 200 ° C) and flame retardant, make its can work technical requirements higher. Further applications include thermal water tank and thermal insulation of the equipment. A systematic solution based on Yadina mylamine foam can be applied to the whole water tank wall. The data of Yadina melamine foam have reached the international advanced standard.