Paint Technology and TestsGardner, Henry A. (Henry Alfred)
Science
Paint Technology and Tests
Gardner, Henry A. (Henry Alfred)
Paint
Prussian blue, a colored pigment largely used, but one liable to react
with certain paint pigments, was admixed with various paints applied to
certain panels. This color was found in some cases to have faded
materially, especially when mixed with alkaline pigments such as white
lead. Sublimed white lead and zinc oxide, which are more inert in
nature, did not have such action on Prussian blue, and the tinted bases
of these pigments stood up in a remarkable manner. The greens which were
tested were all in very good condition, with absence of fading, and
showing only slight mildew.
=Condensed Results of Inspection.= The results of inspection as obtained
by the fence committee[20] having in charge the inspection of the test,
have been condensed into table form, and are presented on pages 130-131.
[20] R. S. Perry, Director Scientific Section, Paint Manufacturers'
Association of the U. S.; George Butler, Official Painter,
representing Master House Painters' & Decorators' Association, H.
A. Gardner, Asst. Director.
=Second Annual Inspection of the Atlantic City Test Fence.= After the
original paints which had been applied to the Atlantic City Fence had
been exposed for over two years, another inspection was made by a
committee representing the Master Painters' Association of Philadelphia
and the Scientific Section of the Paint Manufacturers' Association of
the United States. A digest of the report of this committee[21] follows:
[21] George Butler, Official Painter Atlantic City Test Fence,
representing Philadelphia Master Painters' Association; Charles
Macnichol, Master Painter; Henry A. Gardner, Director Scientific
Section, Paint Manufacturers' Association of the U. S.
"The painted panels were all carefully inspected by the inspectors in
the usual manner. With the aid of high-power magnifying glasses,
checking was determined. The degree of chalking exhibited by the various
paints was ascertained by rubbing a piece of black cloth across the
surface of each paint. Close observance was made to determine scaling,
peeling, cracking, gloss, color, and the other factors to be considered
when examining a painted surface. From these observations it was
possible for the inspectors to state whether a panel exhibited general
good condition, general fair condition, or general poor condition.
CHART OF RESULTS--FIRST INSPECTION--ATLANTIC CITY TEST FENCE
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