| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum fin material for heat exchangers that is excellent in water resistance, stain resistance, hydrophilicity persistence, particularly hydrophilicity persistence after a heat cycle test, and adhesion.SOLUTION: A hydrophilic paint composition comprises hydrophilic polymer fine particles (A), polyacrylamide resin (B) and a specific anionic surfactant (C). The content of the specific anionic surfactant (C) is 5-20 pts. mass relative to the total solid content 100 pts. mass of the hydrophilic polymer fine particles (A) and polyacrylamide resin (B).SELECTED DRAWING: None |
