OCR Text |
Show , . PAINTING BY DIPPING While white and red lead remain In extensive use and flat tint paints I retain their popularity painting will be a dangerous trade, particularly in doors. But great changes hae already al-ready taken place In 6ome industries requiring considerable painting, lor the articles to be covered are now dipped Instead of being covered by hand. A large proportion of automobile bodies are probably painted thl way, and very little dry sandpapering is done on them, the only rubbing down being done with water and pumice on the final coats. This condition is- the opposite of that in the carriage trade, where the amount of dry sand-papenng sand-papenng is &t 1 1 1 vers large Wagons and agricultural implements requlro little sandpapering of lead paints, as most of the work is done by dipping In tanks of leadless paints The only danger in such places comes from the paint which drips on the skin of the workmen about the tanks This causes many cases of poisoning where lead is used although not so many as where dust has not been eliminated. W hile painting by dipping in paints containing little or no lead was I adopted as a more economical process pro-cess than the older methods, its sanitary san-itary value has proved so marked that it will undoubtedly become recognized rec-ognized as doubly economical Id that better work can be had trom health: experienced men thau from raw-hands raw-hands led by a number of more or less sickly skilled men. For the same reason, while lead is giving place to the basic sulphate In shops where managers recognize the Importance Im-portance of sanitation . It Is evident that the day Is at hand when something more than color, col-or, covering power and protective aualltls must be considered In paints for the health of the painter must be recognized as an important factor in determining what is the 1 best" material ma-terial for a given purpose or under certain conditions. Engineering Record. |