Paint Technology and TestsGardner, Henry A. (Henry Alfred)
Science
Paint Technology and Tests
Gardner, Henry A. (Henry Alfred)
Paint
Lead and manganese linoleate drier.[6]
Lithographic linseed oil.
Boiled linseed oil (resinate type).
Boiled linseed oil (linoleate type).
Blown linseed oil (containing drier while being blown).
Heavy mineral oil.
Rosin oil.
Soya bean oil.
Corn oil.
Cottonseed oil.
Sunflower oil.
Menhaden oil.
Chinese wood oil, raw.
Chinese wood oil, treated.
Perilla oil.[7]
Lumbang oil.[7]
Dry rosin 20%, boiled in 80% linseed oil.
[6] The drier used, upon analysis, showed the presence of 4.36% PbO
and 2.51% MnO_{2}.
[7] The lumbang and perilla oils were imported and arrived subsequent
to the starting of the tests. They were therefore not included in
the tests.
"Four-ounce sample bottles of each oil were sent to the Committee
members, with the request to proceed with the tests along the lines
agreed upon at the Committee meeting. The instructions for making these
tests are outlined as follows:
(_a_) A series of small glass plates, approximately 5 by 7 ins., are to
be prepared by each member of the Committee. These plates are to be
thoroughly cleaned and carefully numbered and weighed upon a chemical
balance. The oils to be used for the tests are to be numbered
corresponding to the plates. A test of each oil is to be made by
painting it upon the surface of a glass plate with a camel's-hair brush,
subsequently weighing the plate and the oil. These tests are to be
exposed under constant conditions of temperature, if possible, for three
weeks' time, making weighings of each plate every day for six days and
then every other day for twelve days.
(_b_) Another series of tests shall be made, in which 80% of raw linseed
oil is to be combined with each of the above oils named. Previous to
making any of the tests, _there should be added to each oil, or to each
combination, 5% of a drier containing lead and manganese_. The drier to
be used is of the standard grade submitted, together with the oil
samples. The results of the tests are to be charted and submitted at the
end of the tests, so that they may be compared with the results obtained
by each member of the Committee.
(_c_) If possible, the oils and mixture of oils used in the above tests
are to be ground with pure silica and painted out upon sized paper,
three-coat work, the films to be stripped and tested for strength upon a
paint filmometer, at two periods two months apart."
Public-domain text, read in full here on John Shaqi.
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