Iron corrosion; anti-fouling and anti-corrosive paints . n, will, in turn,peel off after the lapse of several months,the metal thus undergoing further cor-rosion. A decided progression of therusting was also exhibited by the samplestreated with dilute hydrochloric acid fora short period only ; even the applicationof a coat of linseed varnish —which wasimmediately absorbed by the layer of rustand thereby spread out in the latter—proved incapable of preventing peeling,the crust in that portion being coherentand removable in a single piece. With regard to the magnified views,it will be seen that
Iron corrosion; anti-fouling and anti-corrosive paints . n, will, in turn,peel off after the lapse of several months,the metal thus undergoing further cor-rosion. A decided progression of therusting was also exhibited by the samplestreated with dilute hydrochloric acid fora short period only ; even the applicationof a coat of linseed varnish —which wasimmediately absorbed by the layer of rustand thereby spread out in the latter—proved incapable of preventing peeling,the crust in that portion being coherentand removable in a single piece. With regard to the magnified views,it will be seen that in each of the natu-ral size reproductions there is markeda light ring, which indicates the part magnified: hence thedifierences revealed by magnification can be readily seen bycomparison with the original. In all instances the lightest 46 lEON-COBEOSION AND ANTI-CORROSIVE PAINTS. patches indicate the lightest-coloured portions of rust, thedeeper tones the darker-coloared pieces, and only the blackmasses represent the still clean, unattacked Figs. 30 and 31.—Rust pittings in tinned sheet iron stored for ten years in acellar. The black patches are the rust, the lighter portions indicatingthe clean metal. Fig. 21 shows rust produced in the natural way, the ironplate having been exposed to atmospheric influences for four-teen days and nights in succession. Here again the phenomenon IRON-COEHOSION AND ANTI-CORROSIVE PAINTS. 47 already referred to was observed, the metal being completelyrusted over in some places, while in others only spots aboutthe size of a needle point could be observed. In the first-
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcorrosionandanticorr
