INORGANIC ALGA-PROOF AGENT

摘要

PROBLEM TO BE SOLVED: To provide an inorganic alga-proof agent excellent in alga-proof ability, sustained release, and durability.SOLUTION: An inorganic alga-proof agent exhibiting alga-proof performance in water: has a predetermined range of a blend ratio of a zinc compound powder to release zinc ions having alga-proof ability in water or a copper compound powder to release copper ions having alga-proof ability in water, to a binder powder; and is formed as a compact of a predetermined shape.