Pamphlets on Wood Preservation, Volume 3 (Google eBook)

Front Cover
1909 - Wood
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Page 189 - ... composition are used as coatings upon pipe-lines in acid factories, tanks containing dilute acids, metal submerged in water, and for other similar work. For such purposes it is generally advisable to first coat the metal with a thoroughly hard drying prime coating made by adding 2 pounds of litharge to a prepared red lead or other rust-inhibitive paint.
Page 20 - ... the average paint coating is only three one-thousandths of an inch thick, and yet this thin coating is required to withstand expansion and contraction of the underlying surface, abrasion or wear from storms of dust and sand, or rain, sleet, hail, and' absorbing, drawing and expanding influences of the sum mer's sun and contraction from the cold of win18 ter.
Page 34 - The use of some of these flat varnishes is commendable, especially in producing certain results on natural hardwoods. Graining is practically becoming a lost art, owing to the general use of hardwoods. Where the work is well done, this specification should produce splendid results. Some painters may not agree with me in the number of coats and manner of mixing the ground coating; let them try it, and they will find no cracking or crazing of their varnish; but of course the varnish must be good, and...
Page 21 - Tt must have both hardness, to withstand to a reasonable extent this surface wear, and yet enough elasticity to meet internal strain and to conform to changes * The more modern method is to omit the shellac and treat with turpentine before applying the paint.
Page 22 - Prepared Mixed Paints" in paste form are used, the limit of inert pigments should be 15 per cent. This percentage may be composed of barytes, silica or asbestine, or a mixture of such pigments. To this amount there should be no objection as up to that extent these inerts have their values as part of a good paint film, but vehicle proportions as set forth should be followed. The use of asbestine...
Page 47 - ... of the woods. In staining it should be emphasized that it does not mean a covering up, but rather the bringing out. In oil stains the coloring matter is largely composed of pigments of a different character and as a rule they are permanent, but they have a strong tendency to cover up. Spirit stains are hard to apply and the results unsatisfactory, the coloring matter very often being fugitive.
Page 35 - touch" of burnt sienna, or burnt and raw sienna, to the first coat of varnish, not sufficient to produce a stain, simply giving the wood a warm pleasing...
Page 122 - We guarantee that this paint, when properly used, will not crack, flake or chalk off, and will cover more surface, work better, wear longer, and permanently look better than other paints, including Pure White Lead and Oil. We hereby agree to forfeit the value of the paint and the cost of applying it if in any instance it is not found as above represented.
Page 37 - The straight zinc coat should have an "eggshell gloss" for the reason that, if it were perfectly flat such as the under paint coatings should be, it would absorb and draw the liquid properties from the enamel coat, leaving a surface of questionable uniformity. The different coats of paint from the shellac up should be tinted as required for the finish, for by so doing you get a solidity of tint that you otherwise would not obtain.
Page 122 - We guarantee that this paint when properly used, will not crack, flake or chalk off, and will cover more surface, work better, wear longer and permanently look better than other paints including pure lead and oil. We hereby agree to forfeit the value of the paint and the cost of applying it, if in any instance it is not found as above represented.

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