Produced by Chris Curnow, Harry Lame and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) +------------------------------------------------------------------+ | TRANSCRIBER'S NOTES | | | | * Where the original work uses text in italics or bold face, this| | e-text uses _text_ and =text=, respectively. Small caps in the | | original work are represented here in all capitals. Subscripts | | are represented as _{subscript}. | | * Footnotes have been moved to directly below the paragraph or | | table to which they belong. | | * Several tables have been split, transposed or otherwise re- | | arranged to make them fit within the available width. | | | | More Transcriber's Notes will be found at the end of this text. | +------------------------------------------------------------------+ PAINT TECHNOLOGY AND TESTS Published by the McGraw-Hill Book Company New York Successors to the Book Departments of the McGraw Publishing Company Hill Publishing Company Publishers of Books for Electrical World The Engineering and Mining Journal Engineering Record American Machinist Electric Railway Journal Coal Age Metallurgical and Chemical Engineering Power PAINT TECHNOLOGY AND TESTS. BY HENRY A. GARDNER _Assistant Director, The Institute of Industrial Research, Washington, D. C._ _Director, Scientific Section, Paint Manufacturers' Association of the United States, etc._ McGRAW-HILL BOOK COMPANY 239 WEST 39TH STREET, NEW YORK 6 BOUVERIE STREET, LONDON, E.C. 1911 _Copyright, 1911, by the_ MCGRAW-HILL BOOK COMPANY THE.PLIMPTON.PRESS.NORWOOD.MASS.U.S.A TO MY MOTHER PREFACE A few years ago the producer and consumer of paints possessed comparatively little knowledge of the relative durability of various pigments and oils. There existed in some cases a prejudice for a few standard products, that often held the user in bondage, discouraging investigation and exciting suspicion whenever discoveries were made, that brought forth new materials. Such conditions indicated to the more progressive, the need of positive information regarding the value of various painting materials, and the advisability of having the questions at issue determined in a practical manner.