| 摘要 |
An inorganic composition which is capable of forming a coating film or adherent layer excellent in water resistance, weatherability, heat resistance, chemical resistance, adhesion, surface smoothness, hardness and gloss and which consists essentially of (A) a calcined borate-type mixture obtained by calcining at a temperature of about 300 DEG to about 1,500 DEG C a mixture comprising (i)(a) a borate of a metallic element of Groups II to VIII of the Periodic Table or (i)(b) at least one boric acid compound selected from the group consisting of boric acid and boron oxide and at least one phosphoric acid compound selected from the group consisting of phosphoric acid, phosphorus pentoxide, and metal phosphates and (ii) at least one polyvalent metal compound selected from the group consisting of polyvalent metal oxides, hydroxides, carbonates, phosphates, silicates, sulfates, and nitrates, and (B) a water-soluble silicate.
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