Durable water repellent and coated articles

A durable water repellent agent comprising a repellent and a fluorine-containing resin, wherein the repellent comprises a perfluoroalkyl group-containing polymer, the solid content weight ratio between said repellent and said fluorine-containing resin being (repellent):(fluorine-containing resin)=50:50 to 99:1,

• said perflouroalkyl group-containing polymer comprises a copolymer of a perfluoroalkyl group-containing ethylenically unsaturated monomer and one or more other monomers,
• said perfluoroalkyl group-containing ethylenically unsaturated monomer is at least one compound selected from the group consisting of:
• in the formulas, Rf represents a perfluoroalkyl group whose alkyl moiety contains 4 to 20 carbon atoms, R1 represents hydrogen or an alkyl group containing 1 to 10 carbon atoms, R2 represents an alkylene group containing 1 to 10 carbon atoms, R3 represents hydrogen or a methyl group, R4 represents an alkyl group containing 1 to 17 carbon atoms, n represents an integer of 1 to 10 and m represents an integer of 0 to 10,
• said other monomers are selected from the group consisting of alkyl(meth)acrylates containing 1 to 20 carbon atoms in the alkyl moiety, cyclohexyl(meth)acrylate, benzyl(meth)acrylate, polyethylene glycol di(meth)acrylate, N-methylolacrylamide, ethylene, vinyl chloride, (meth)acrylamide, styrene, α-methylstyrene, p-methylstyrene, vinyl alkyl ethers containing 1 to 20 carbon atoms in the alkyl moiety, halogenated alkyl vinyl ethers containing 1 to 20 carbon atoms in the alkyl moiety, vinyl alkyl ketones containing 1 to 20 carbon atoms in the alkyl moiety, maleic anhydride,
• butadiene, isoprene, chloroprene and silyl-containing vinyl monomers,
• said fluorine-containing resin comprises a fluororesin or a mixture of a fluororesin and some other resin,
• said fluororesin comprises a copolymer of a fluoroolefin and a vinyl monomer or a copolymer of fluoroolefins, or is obtained by seed polymerization of an acrylic resin.