Iron corrosion; anti-fouling and anti-corrosive paints . Pig. 47 (natural size).. Fig. 48 (magnified),—Wrinkles formed on an over-tliiok coat of paint. former; that is to say, where weight is left out of thequestion, white lead covers better than zinc white. However,when the matter is approached from the point of view of theweight of white lead required to cover a given surface, then itis found that the conditions are reversed, , a given super- IRON-CORROSION AND ANTI-CORROSIVE PAINTS. 95 ficial area requires a relatively greater iveiijht of white lead buta greater relative volume, of zinc
Iron corrosion; anti-fouling and anti-corrosive paints . Pig. 47 (natural size).. Fig. 48 (magnified),—Wrinkles formed on an over-tliiok coat of paint. former; that is to say, where weight is left out of thequestion, white lead covers better than zinc white. However,when the matter is approached from the point of view of theweight of white lead required to cover a given surface, then itis found that the conditions are reversed, , a given super- IRON-CORROSION AND ANTI-CORROSIVE PAINTS. 95 ficial area requires a relatively greater iveiijht of white lead buta greater relative volume, of zinc white to become thoroughlycovered. The covering power does not stand in any fixedratio to the consumption of oil or varnish by the pigment :nevertheless good covering power is generally accompaniedby a high capacity of absorbing oil or varnish. Number of Coats of Oil Paint. The question of Jiovj many coaU of oil paint vmst be appliedto iron in order to ensure efficient protection afjamst riistini/, and toprevent the passage of water or moisture through the paintitself, has
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcorrosionandanticorr
