Masonry treatment composition

A self-emulsifying, liquid treatment composition for rendering substrates both water- and oil-repellent comprising the polysiloxane reaction product of (a) at least one alkoxysilane, alkoxysiloxane, or siloxane compound comprising at least one hydrophobic moiety selected from the group consisting of alkyl, aryl, aralkyl, and alkaryl moieties;

• (b) at least one alkoxysilane, alkoxysiloxane, or siloxane compound comprising at least one hydrophilic moiety selected from the group consisting of protonated and unprotonated azaalkyl and silyl-containing azaalkyl moieties;
• and/c) at least one fluorine-containing alkoxysilane compound represented by the average general formula:
• ›R.sub.f --Z--R.sup.5 !.sub.h' Si(R.sup.2.sub.h")(OR.sup.2).sub.4-h'-h"
• wherein each R.sub.f is independently a perfluoroalkyl group having at least four carbon atoms and optionally containing one or more catenary ether oxygen atoms;
• each R.sup.5 is independently selected from the group consisting of alkylene groups having from 2 to about 11 carbon atoms, arylene groups having from 6 to about 10 carbon atoms, and alkarylene groups having from 7 to about 16 carbon atoms;
• each R.sup.2 is independently an alkyl group having from 1 to about 4 carbon atoms;
• h' is an integer of 1 or 2;
• h" is an integer of 0 or 1 ;
• the sum of h' and h" is less than or equal to 2;
• and each Z is independently a divalent moiety selected from the group consisting of a covalent bond, --(CH.sub.2).sub.n S--, --(CH.sub.2).sub.n+1 NR.sup.2 --, --(CH.sub.2).sub.n SO.sub.2 NR.sup.3 --, --(CH.sub.2).sub.n C(.dbd.O)NR.sup.3 --, --(CH.sub.2).sub.n SO.sub.2 NR.sup.2 CH.sub.2 CH.sub.2 O(C.dbd.O)CH.sub.2 CH.sub.2 NR.sup.3 --, and --(CH.sub.2).sub.n' O--, where n is an integer of 0 to about 5, n' is an integer of 1 to about 5, R.sup.2 is an alkyl group having from 1 to about 4 carbon atoms, and R.sup.3 is selected from the group consisting of hydrogen and alkyl groups having from 1 to about 4 carbon atoms with the provision that Z is not a covalent bond when R.sup.5 is alkylene.