JT/T 600.3-2004 anti-corrosion powder coatings and coatings for highway use. Part 3: Thermal plasticity polyvinyl chloride (PVC) powder coatings and coatings The standard specifies the technical requirements and test methods for thermal plasticity polyvinyl chloride (PVC) (PVC) powder coatings and coatings for highway anti-corrosion. This coating has good chemical corrosion resistance and weathering resistance, and is suitable for protective paintings of metal structures such as highway bridges and guardrails. The standard describes the chemical composition, physical performance requirements and construction technology of the coating in detail, providing scientific and technical support for the protection painting of highway engineering.