Article coated with water-repellent film, liquid composition for coating with water-repellent film, and process for producing article coated with water-repellent film

A water-repellent film-coating composition containing

• (A) a thoroughly hydrolyzable silane compound,
• (B) a silane compound with a water-repellent group,
• (C) an acid and
• (D) a compound of at least one of metal selected from the group consisting of magnesium, calcium, strontium and boron.

A water-repellent film-coating composition containing

• (A) a thoroughly hydrolyzable silane compound or its hydrolysate at 0.01-2 wt % (based on SiO2),
• (B) a silane compound with a water-repellent group at 0.00001-0.15 wt % (based on SiO2),
• (C) an acid at 0.001-3 N,
• (D-1) a magnesium and/or calcium compound at a molar ratio of 0.01-0.4, based on MgO and CaO, with respect to said silane compound (A) (based on SiO2),
• (D-2) a boron and/or zirconium compound at a molar ratio of 0.01-0.4, based on BO3/2 and ZrO2, with respect to said silane compound (A) (based on SiO2),
• (E) a compound of at least one of metal selected from the group consisting of cobalt, iron, nickel, copper, aluminum, gallium, indium, scandium, yttrium, lanthanum, cerium and zinc at a molar ratio of 0-0.4, based on CoO, FeO3/2, NiC2, CuO, AlO3/2, GaO3/2, InO3/2, ScO3/2, YO3/2, LaO3/2, CeO3/2 and ZnO, with respect to said silane compound (A) (based on SiO2), and
• (F) water at 0-20 wt %.