Surface coating composition with long durability

A composition comprising the following components:

• a) hydrophobically modified fumed silica particles with a median particle size of from 100 to 100,000 nm;
• b) one or more organosilanol compounds selected from the group consisting of:
• compounds of Formula (I), wherein Formula (I) is:
• X—R—Si(OH)mY1nY2o (I)
• wherein:
• X is a non-hydrolyzable linear, branched or unbranched aliphatic alkyl residue with 1 to 12 carbon atoms, optionally substituted with fluorine or chlorine atoms;
• or is a functional group selected from the group consisting of:
• amino, epoxy, vinyl, methacrylate, or sulfur groups;
• R is a spacer and is either an aryl or alkyl chain;
• Y1 and Y2 are identical or different and each is independently a hydrolysable or non-hydrolyzable moiety selected from the group consisting of:
• linear, branched or unbranched, alkyl groups with 1 to 12 carbon atoms;
• aryl groups with 6 to 12 carbon atoms;
• halogens;
• alkoxy groups with 1 to 12, carbon atoms;
• and acyl groups with 1 to 12 carbon atoms;
• with the provisio that at least one of Y1 and Y2 is hydrolyzable and is selected from the group consisting of:
• halogens, alkoxy groups with 1 to 12 carbon atoms;
• and acyl groups with 1 to 12 carbon atoms;
• m=1, 2 or 3;
• n and o are each 0 or 1, but are selected such that m+n+o=3;
• and
• dimeric compounds of Formula (I);
• trimeric compounds of Formula (I);
• and oligomeric compounds formed by a self-condensation reaction of up to 8 molecules according to Formula (I), provided that the compounds have at least one or two free —OH groups;
• c) a solvent or mixture of solvents.