Principles and practices of up-keep painting (1923)
E.I. du Pont de Nemours & Company, author · Chicago, Ill. ; Philadelphia, Pa. ; Boston, Mass. : E.I. du Pont de Nemours & Co., Inc. · leaf 25
Lead crystals, thus producing an imperfect film, lacking many of the characteristics necessary for maximum protection. Usually a paint so composed affords a ready lodging place for dust, dirt, plant pollen and the like, which not only destroy the appearance of the finish, but shorten the life of… … Panel on Left Painted with Single Pigment Paint; Panel on Right Painted with Combination Pigment Paint. Photograph taken after Two Years’ Exposure on Pittsburgh Test Fence White Zinc or Oxide of Zinc, when used alone, is brittle and soon cracks and chips, due to expansion and contraction of the…
Painting, Industrial · Varnish and varnishing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from St. Nicholas [serial] (1873)](https://img.insideoutlibrary.com/img/200/ia-stnicholasserial332dodg-542-715.webp)
