High-temperature resistant heat-insulating and thermal-retaining coating is a kind of coating processed with specially synthesized inorganic silicate solution, aluminum silicate fiber, heat-reflecting substance, rare earth micropowder and selected hollow ceramic beads. This kind of coating belongs to inorganic single component and has the following characteristics:
1. Low thermal conductivity: the thermal conductivity of the coating is only 0.033W/m.k, which is relatively low, so it can effectively inhibit heat conduction and realize the effect of heat insulation and heat preservation.
2. Heat insulation and heat preservation effect is obvious: under certain thickness conditions, high temperature resistant heat insulation and heat preservation coating can inhibit the efficiency of 90%, which is very useful for high temperature working condition equipment.
3. Wide range of application: High temperature heat insulation coating can be used in high temperature kilns, furnaces, high temperature molds, pipelines, electric furnaces, induction furnaces, rotary kilns and other high temperature working condition equipment, with a wide range of application.

The overall structure of the coating is equivalent to creating a warm water bottle heat insulation mechanism. The air inside the cavity of hollow ceramic beads added in the coating will not produce thermal convection after being heated at high temperature. Another feature of the coating is the presence of a three-dimensional air layer between the hollow ceramic microbeads, which avoids the generation of thermal convection. At the same time, an inorganic film-forming substance with a relatively low thermal conductivity is used as a support for the coating, and together they construct an adiabatic shielding layer with a static air layer and an inorganic film-forming substance. 
In addition, heat-reflecting materials are also added to the coating as auxiliary fillers so that the thermal conductivity of the coating is close to the vacuum thermal conductivity. In this way, the coating is able to provide effective thermal insulation.
Overall, the thermal performance of the coating is due to the interaction of a number of factors. From the incorporation of hollow ceramic beads and heat-reflecting materials into the coating to the thermal conductivity of the inorganic film-forming material, these are all key factors in the coating's ability to effectively insulate. At the same time, the overall construction of the coating is also very important as it avoids the generation of thermal convection, which improves the insulation properties of the coating.

Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150A. 
High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.