The metal filler has high thermal conductivity and can transfer the heat on the coated substrate. In addition, since the silicone resin is oxidized, the metal particles and the silicone resin fuse to form a stable ceramic-like structure containing a metal-silicone bond. If more reinforcing fillers are added to the formula (such as mica powder or wollastonite powder), better thermal stability can be obtained. Even if it is a silicone-modified organic resin or an organic resin-modified silicone resin, the addition of pigments and fillers can greatly increase its heat-resistant temperature.

Pure silicon resin has better high temperature resistance than organic resin. For silicone resin modified organic resin, with the increase of silicone resin content, its high temperature resistance is also greatly improved; therefore, silicone resin modified organic resin or organic resin modified silicon Resin's high-temperature-resistant coatings are on the market one after another, greatly increasing the variety of high-temperature-resistant coatings.

High temperature resistant coatings generally use high temperature resistant inorganic pigments and fillers. Commonly used metal pigments are aluminum or zinc powder, white pigments are titanium dioxide, black pigments are inorganic black, graphite, lamp black, and carbon black, and yellow pigments are cadmium yellow, iron oxide yellow, zinc chromium yellow, light yellow, and red pigments. It is cadmium red, iron oxide red, blue pigment is phthalocyanine blue, inorganic blue, green pigment is chrome oxide green, phthalocyanine green, inorganic green, brown pigment is iron oxide brown, inorganic brown; commonly used fillers are wet mica, Micronized mica, magnesium silicate, aluminum silicate, silicon dioxide, diatomaceous earth and aluminum stearate.

High temperature resistant paints with high temperature resistant pigments or fillers are mainly used in chimneys, car mufflers and exhaust pipes, boilers, ovens, steam pipes, barbecue grills, cookers, heat exchangers, incinerators, wood burning stoves, fireplace inserts and doors , Space heaters, lighting fixtures and bulbs, portable oil stoves, kitchen stoves and clothes dryers for laundry.