| abstract |
PROBLEM TO BE SOLVED: To provide an algae growth paint capable of improving economic efficiency and workability and expecting a long-term algae growth effect. SOLUTION: A coating material containing a porous material in a resin to form a porous coating film 2 having a large number of fine pores 2a, the coating material including iron, sodium, potassium, calcium, phosphorus, zinc, copper , And a mixture of one or more selected from manganese or these compounds as a nutrient source, and by containing a zeolite having a cation exchange function, the growth of algae 4 and phytoplankton can be easily achieved. Can be promoted. [Selection] Figure 3 |