Double Side Matt PPGI for Fence Sheet

Metal sheets processed using the "three-coat, three-bake" roller-coating method exhibit superior overall performance—particularly regarding weather resistance and coating adhesion—far surpassing that of conventional "two-coat, one-bake" processes. More Uniform and Dense Coating; Enhanced Protection The three-coat, three-bake process involves the sequential roller-coating of a primer, a print layer, and a topcoat (clear varnish), with each layer being individually baked and cured. This ensures that every layer achieves full cross-linking and curing, resulting in a coating of uniform thickness and higher density. Consequently, it becomes significantly more difficult for moisture and corrosive agents to penetrate the material; compared to the single-cured layer produced by the two-coat, one-bake method, salt spray resistance is improved by over 30%. Superior Inter-layer Adhesion; Resistance to Peeling and Cracking Since each layer is individually baked and cured, the bonding strength between layers is significantly enhanced. This prevents issues such as paint chipping, delamination, or cracking during subsequent processing and bending operations. For multi-layer printed products—such as those featuring 3D wood grain or rusted metal textures—this process effectively preserves the integrity of the pattern, ensuring that the texture remains undamaged during manufacturing. Extended Service Life and Weather Resistance