on the total weight of the composition component b in the compositions of the present invention is at least one organohydrogensilicon compound which is free of aliphatic unsaturation and contains two or more silicon atoms linked by divalent radicals an average of from one to two silicon bonded monovalent radicals per silicon atom and an average of at least one and preferably two three or more silicon bonded hydrogen atoms per molecule thereof preferably the organohydrogensiloxane in the compositions of the present invention contains an average of three or more silicon bonded hydrogen atoms such as for example 5 10 20 40 70 100 and more the organohydrogenpolysiloxane is preferably a compound having the average unit formula r a 1 h b sio sub 4 a b 2 wherein r 1 denotes said monovalent radical free of aliphatic unsaturation the subscript b has a value of from greater than 0 to 1 such as 0 001 0 01 0 1 and 1 0 and the sum of the subscripts a plus b has a value of from 1 to 3 such as 1 2 1 9 and 2 5 siloxane units in the organohydrogenpolysiloxanes having the average unit formula immediately above have the formulae r 3 3 sio 1 2 r 2 3 hsio 1 2 r 2 3 sio 2 2 r 3 hsio 2 2 r 3 sio 3 2 hsio 3 2 and sio 4 2 said siloxane units can be combined in any molecular arrangement such as linear branched cyclic and combinations thereof to provide organohydrogenpolysiloxanes that are useful as component b in the compositions of the present invention a preferred organohydrogenpolysiloxane for the compositions of this invention is a.