PROBLEM TO BE SOLVED: To provide a fluorine-applying agent which does not form white cloudiness or precipitation despite inclusion of a high concentration of fluoride ion even on leaving/storing in an environment of a low temperature for a long period, is excellent in character stability, foam stability and use feeling, and also is safe for a human body or environment.SOLUTION: The foam-formed fluorine-applying agent is obtained by filling a liquid composition obtained by blending three or more of fluoride compounds for feeding the fluoride ion, phosphoric acid ion, an anionic surfactant and a compound having hydroxy group into a foamer container having a porous membrane.COPYRIGHT: (C)2007,JPO&INPIT【課題】 高濃度のフッ化物イオンを含有するにもかかわらず、長時間低温の環境に放置、貯蔵しておいても白濁や沈殿を生じないで、性状安定性に優れ、泡安定性および使用感に優れ、かつ人体や環境に安全であるフッ素塗布剤を提供する。【解決手段】 フッ化物イオンを供給するフッ化物、リン酸イオン、アニオン界面活性剤および水酸基を有する化合物を3種以上配合してなる液体組成物を、多孔質膜を有するフォーマー容器に充填してなる泡沫状フッ素塗布剤。【選択図】 なし