This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ...light mineral oils. The action of such a drier is very rapid. Oil driers are made, as noted before, by heating linseed oil with metallic salts or oxides to a high temperature and thinning with more oil and volatile solvent. The oxides of lead and manganese are most widely used in the making of driers. ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ...light mineral oils. The action of such a drier is very rapid. Oil driers are made, as noted before, by heating linseed oil with metallic salts or oxides to a high temperature and thinning with more oil and volatile solvent. The oxides of lead and manganese are most widely used in the making of driers. Manganese salts start the drying action and cause the surface to dry quickly. Lead, on the other hand, causes the oxidation to proceed through the film and is generally used in the larger proportion. Red lead makes paint films brittle; litharge tends to make them very elastic. A raw linseed-oil paint dries so slowly that it is impractical and not suited for ordinary use, although it would produce an excellent film in time. The addition of a certain amount of drier is justifiable and necessary, therefore, but it must be borne in mind that at least some action continues long after the oil is dry and eventually tends to bring about the destruction of the film. The kind and amount of drier used, accordingly, has a great influence on the life and durability of the paint and close attention should be paid to this point. It is poor economy to sacrifice a year or two of the usefulness of the paint film in order to make it dry a few hours sooner. On the whole, the oil driers do the least harm, but even they should be used in moderation. Since the tests for the purity of linseed oil are to be found in many text and reference books they will not be given here. According to price conditions and so on, mineral oils, turpentine, rosin and rosin oil, and corn, fish and cottonseed oils may be used to adulterate it. The detection and estima tion of these is the work of the analytical chemist and further consideration of them would be out of place here. Among...
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Add this copy of The Corrosion of Iron: a Summary of Causes and to cart. $63.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
