Fairly good results were obtained in every case, but especially when lithopone or zinc oxide was used as a priming base.
Incidentally, lithopone which turns gray or nearly black in the sunlight regains its whiteness during the night.
These lithopone tests were later on replaced by new tests which are described later in this book.
An amusing incident is told of a young man who painted his boat one night with a white paint in which lithopone was the pigment.
These lithopone tests were later on replaced by new tests in 1909, which will be reported upon later in this book.
Lead pigments are never used with lithopone, as lead sulphide results, giving a black appearance.
Zinc oxide and lithopone, the latter pigment containing 30% of zinc sulphide, both indicated action on the oil.
Almost complete failure had taken place in every case where lithopone had been used.
A rough, sandy surface, however, was shown where lithopone was used in any great quantity.
lithopone was early destroyed, as is usual with this pigment when used alone on exterior surfaces.