Iron corrosion; anti-fouling and anti-corrosive paints . nthe inner side of one of the posts, without any apparentcause. This fracture left the plastered hinge staple exposedand showed the metal to be in an advanced stage of destruc-tion, scales of rust \ of an inch thick peeling off gypsum also exhibited a characteristic red-brown ap-pearance. As, on inspection, the door was found not to haveexerted any pressure on this middle staple, the only remain-inc explanation possible of the splitting of the otherwise 30 IBON-COREOSION AND ANTI-COREOSIVE PAINTS. perfectly sound and veinless
Iron corrosion; anti-fouling and anti-corrosive paints . nthe inner side of one of the posts, without any apparentcause. This fracture left the plastered hinge staple exposedand showed the metal to be in an advanced stage of destruc-tion, scales of rust \ of an inch thick peeling off gypsum also exhibited a characteristic red-brown ap-pearance. As, on inspection, the door was found not to haveexerted any pressure on this middle staple, the only remain-inc explanation possible of the splitting of the otherwise 30 IBON-COREOSION AND ANTI-COREOSIVE PAINTS. perfectly sound and veinless stone was the assumption thatit was caused by the expansion of the metal in rusting. On the other hand, pure cement has proved itself anexcellent preventive of rust, iron set in pure cement re-maining unrusted even when kept under water. Paintingironwork over with a thin gruel of cement also answers verywell, and this coating, being at the same time cheaper, may bepreferred to red lead (minium) paint. The rusting of iron under atmospheric influences in. Pig. 14 (natural size).—Rolled iron plate with damaged sui-face scoured withpumice and rusted by the action of hydrochloric acid during two lower half was rubbed dry and consequently is less rusty. general, and under normal conditions, has hitherto receivedas little thorough attention as that produced by the action ofsmoke fumes, weak acid gases, dilute liquid alkalis, iron is left in the open air, and thus exposed to theinfluence of depositions and condensations of water, ^ rainand snow, brought about by fluctuations of temperature, itrusts, , the iron—whether wrought or cast, rolled iron orsteel—acquires a red incrustation, pulverulent when dry, IRON-CORBOSION AND ANTI-CORROSIVE PAINTS. 31 easily rubbed off, and leaving a clean surface underneathprovided the reaction has not occurred more than once andfor only a short time. If, however, the deposition of wateror moisture be repeated and prolonged,
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcorrosionandanticorr
