In the field of industrial anti-corrosion and decorative coatings, waterborne polyurethane topcoat is gradually replacing traditional solvent-based coatings due to its environmentally friendly low VOC, high durability, and excellent overall performance.
Long-term storage may cause the components in the coating to separate or settle, affecting the leveling stability.
The lightweight nature of flexible substrates requires that the primer improve performance while minimizing coating thickness and weight.
For thick coating areas such as steel columns, wire mesh can be wrapped around the coating when the coating thickness reaches half to enhance crack resistance.
The hiding power of carbon fiber primer is one of its core performance indicators, which directly affects the coating's coverage of the substrate color and the uniformity of the final appearance.
As the core driving component of the expansion process, the decomposition temperature and gas production efficiency of the foaming agent directly determine the expansion ratio.