Bilayer polyester modified organic silicon orange-peel paint as well as preparation method and application thereof

The invention discloses a bilayer polyester modified organic silicon orange-peel paint as well as a preparation method and application thereof and belongs to the technical field of polyester modified organic silicon paints. Aiming at solving the problem that the existing orange-peel paint can not be applied to high-temperature environment, the technical scheme of the invention is provided by utilizing the advantages of high-temperature-resistant polyester modified organic silicon resin of high temperature resistance and strong metal binding and adhesive power, the orange-peel paint disclosed by the invention is composed of primer and finish paint, wherein the primer comprises 35-55 parts of high-temperature-resistant polyester modified organic silicon resin, 30-50 parts of a complex solvent, 0.3-2 parts of a flatting agent, 0.5-1 part of low-temperature crosslinking accelerator and 0-5 parts of decoration filler; the finish paint comprises 40-60 parts of high-temperature-resistant polyester modified organic silicon resin, 30-50 parts of a complex solvent, 0.01-2 parts of high-molecular-weight organic silicon resin solution and 0-5 parts of decoration filler. The applicable temperature of a coating prepared from the bilayer polyester modified organic silicon orange-peel paint disclosed by the invention is higher than or equal to 250 DEG C, the bilayer polyester modified organic silicon orange-peel paint even can be directly contacted with an open fire after a formula is optimized, and the application property of the bilayer polyester modified organic silicon orange-peel paint is good; the construction equipment is available, and the construction technology is easy to control.