Document Y60aB80bM6aNxLQXEwYE5Kq0

f Red-Lead Not Tests Prove Why a Paint Impaired By Paint Is Foe Film Will Not Is Your Name on the Mealing List ? Aeid Vapors of Germs Last Forever ,,It Forms Insoluble Sulphate Infected Surfaces Are Made It Fights the Elements to When Attacked Sterile By Painting "Save the Surface" If you would like to be put on our mwihg.llistjt^Te^iyefree' of-ehtarge' Dutch Boy publications which &in items of interest to you, SB-i^ypur.i.f^u^t';On';,ycrtty./.tetter-; In`id and mail to our ik u m t branch If you are interested in any of our pruiliut' tur luor-nt tom.ri. vlU also K> rlitil to nj o io prk-, or give you any information desired. ofl refining company was having . Germs have killed a vastly greater The length Of-time that a given Stop .trouble with the paint bn Its tanks and number of people tban hayb fallen in, of paint will afford protection to metal work In general because of the: all the wars ever fought. No wonder surf h'o dopCTiiln to u 1 trr<- i voi.t uj presence of sulphurous gases In the so many brilliant minds have been the exposure. , " air. la answer to an Inquiry from the devoted entirely to toe wiping out Of Moisture is the active element company, Profeasor A. H. Sabin, con* these enemies of man. One of the#; enters Into the process of 'M suiting chemist . of National Lead most practical discoveries Is that paint disintegration of all paint Company, wrote in part as follows is a foe' to germs; - ' floo- a*i. re th* i'r Is mw or (Professor Sabin speaks from ait ex perience of thirty years in dealing with paint and painting problems): "Sulphurous gases In the atmosphere are almost always present In the form of sulphurous or sulphuric acid (gen erally both) either in actual solution v in the air (along with more or less . watery vapor) or more rarely as a sort ,bf mist. A test of paint's sterilizing power from moist ir * tlw pre''1 >l Is ^as carried out in the Institute of In slow, and in deserts and other dustrial Research at Washington, M eminlrlm no fierce} t.lilo cWcy G On a laboratory wall one coat'of taken place in a thousand yearsv paint was applied to a small area.' After out-of-doors,--as a general thing, there drying, the painted surface and the ii un nUr^sv dl*I - nt urn to toll Kunpainted area"next to' it were lightly rubbed with a different swab 'which tened with sterile water, ih.each. ewab wag -.'-ills (u tie min bi'ti whlci, >iV an* ih- pmti of io earth lu ted by man. Here we are confronted with certain na*iuU ir.l!.inroi wh'Jj tir.d to ha*- w Boiled a.inseed Oil Affects Drying n*L>e In A hrmt Pomp! Time UTM8 m ADOUt *-"* AlUiC f "These adds are extremely dilute; and while this condition causes prompt and continuous rusting of unprotected out fnto plates of agar tn> u-!i!i'.ijr iiml dimnujjrrutloa of a jelly-like mixture in which easily multiply; RXamlnatiorr -toe paint film. Among these encos may be mentioned the lighb a^d hp, wind, ri'n, li !], tnfluaim1* as Raw Oil iron or steel, .these acids do not nat showed that the plate made from the 'fee. fog, salt spray, dust, din Many painters say that boHed lin urally attack linseed oil or any other oil, nor tar, nor asphaltum, unless the' acids are In concentrated form. Should contained a-positive ; > Theyone rnade-frOnj SUrfaco .Sv'J iv iilx T? rr- an* .1 of other Influences more o artificially produced id cities and the. painted: Area, showed a negligible e nrent of industrial activity tint seed oil "dries from the top" while tout 1> firm tV' Hiirtci cf iliei^al^lal:!-. the binder go rapidly to pieces, it is growth. a marked effect on the life of pn'i ( ouw ird to tno ni- lbl probably due to other and more com mon causes, such aa prevailing tem perature and sun exposure, alternate ing wetness and dryness and so on. "The other part of the paint ib the' pigment Some pigments may be easily attacked by these acid vapors and be converted into soluble sul phates which will not only wash off. hut may corrode iron if they touch It Then- a^ culture; of three . speeds-of germs, each of a -deatondeatlng type, Under such influences may he ftioned brine drippings, acid------ amokcv and other deleterious gasea were-; miXed'/rWitb -a- dty pow^ec And blbwnuponithetwcsUrfacesT^painted Pigment Doos Not Decay and. unpainted. Similarly; ?tjje; germs Taint, of course, is subject, t in a.;sterile liquid were.-,,sprayed- ;.on cay, as is ail other structural ttitf It Jg the vehicle (oil) or vftg< other.: portions, of; the sameiaurtaCes. part of the paint that decays. One hour later plates were made In Mgment or mineral pact of the the agar the-same, as before and;,the ` li : i l: i T1i'll, the observation that a bol]n.i oil film Lr ofton dry U cl slouch while still Soft underneath, while oir' when dry:,to the touch, is dry ear down to the wood. Surface Dries First Any coat of paint dries first on the Hpridae. whether it containe boiled oil Lead Changes Into Sulphate "Lead is also subject to attack, but the lead sulphate is insoluble and If the paint contains red-lead the effect will be to change the pigment hi the1 very thin outer, layer, probably only one five-thousandth of an inch in growths- were positive-thb not;:so pro nounced from the1 -painted .area. Results of Test Next the two 8u,rtaees were hgaiing'iieft to hold it 4n place. .<say;;;;as-.:hSs already been stated, ali toH^e-Pl^e in the presence of M j i.J i. im-itlj a,cc],i-u.o lv tliu in - -on 111 lm. with..-soap: and. sterile' water. o.:.-Blatea W VaV.fOlt The process,of drying requires'oxygon--and tola Is most plenti ful on the surface exposed to airPollifl ofl duo to i pro of manu- depth. Into sulphate. This will cause the surface to whiten, but when you rub it off you will find the red color beneath. The whitened skin Is only a white paint instead of a red paint. If it were soluble it would constantly wash off and the paint would stay red as long as there was any left. "About this time you want to know* yrhy it la that paint does net last in such places. If what I have said Is true. There are two fundamental Reasons. Moisture Causes Chemical Action "We all know. In the first place* that moisture tends to soften an oil film and then sets up chemical Action within it. Tou may think that in a dry climate there is not likely to ' he much moisture; but If there is acid L*'J5S,S 4I4W . _ tn agar were made an hour later. The: agar- containing- the. .cultueewfrom-.the pert paiit to lo-t fote.cr hnthing fta, wliicl, is t>,|in,nil to tho oi. unpointed area showed abundant, Jot Tho n-raod, lor thli r growth while -the- ctdtme^j&rbfft^tlie^ I fri^'iint renown Paint fc ... painted area showed vi* llltlo. Hiun m t il or V. coil. One nr t'to These tests eiyictyirivul prove that In bound to no unotior or laror - rtil-1, .id or whl.o-lond if a -painted sn *uco Sworn* i contam inated the so ir" o' dm - r may be ui removed by wifcl'lnr and a'so that ln- 1U" '|,n "PI'I S'tr.l 'Utir'1 may bo mido sterile by painting. Thefle. io'.u'm are prob ably not so much duo to anx germi _f_'_*_t_s_ the surface of a point film ron- alnlrr oil will dryovery qnfricly. The drying process does not ceaSe however.. It still continues flown the film, tho at a slower rate, 'the oxygen must paw thru liter surface, which is already dry to the touch, Raw ofl.requires the addition of a drier, usually made of lead and man- . nr.f o oxides to hasten . its drying action. This drier makes easier the LEWIS Linseed Oilcidal -properties whichi^painfema-y ^poa- aess, but-^to. the fact timtr.the'-oM--:km^ face is'covered with -a-, clean wash able. -film of - paint. . >--;7 Under this brand we mm raw, boiled and double-boiled linseed i passage of oxygen from air to oil. A ni'nt Dim containing such an oil will .dry more.quickly on the outer surface -j-tbe name as a bofied-oii film--but and moisture (there is always moist Painted Walls Are Sanitary oils--pure, well settled and carefully this outer'layer does not dry as quickly ure where there is acid) which settles on the painted surface the acid will hold some of the water there, no matter how dry the surface may The danger bf'/On unpalatad .dingy aa that of boiled oil. Which fact gives or rough wall is that It will - retain; We also riiake the folltiwiag bpeClai- tbe^deepwportlonffoftoefilmia ohance moisture a long- time andthat its por oils: tp,::get oxygen before .the:; surface is seem to be to thj touch. ous nature makes it easy forifioatihg fiU'* Oil adapted for making sneciat' sealed: When the raw oil film Is dry ,rTou therefore have the water al ways at work softening the oil part of the film and helping the atmos organic matter to collect, vThis ldnd printing tok rvarnishes, enam el-ad Itoifthie. touch; itr ls: jiist Iks 'dty titiruout.: of wall cannot be effectively washed.^ :fAatoew.,aiiia;;an'^^ihi.'' Drying Time the Same phere and the sunlight to destroy it. The chemical rays of sunlight are destructive to all oils. In this second ary way no doubt the acid does help so that the two factors necessary Ton ' AAA Reflnedf'. Oll.of: the rl^xt. char- The important- .point ie thli*--the quick-, bacteria growth-rmoieture andt ai?ter; for;-makijig cieer varoiahea v: organic matter--cannot be removed;- rwhite; pf&'Ung^nlA';:'.;''' -{'S - tipi? necessary for each film to become >.thoraly'dcy.ds .practically, the: same. In John T. Lewis & Bros. Co.to destroy the life of the paint, but It acts bn all alike. "The second cause, which is prob ably the more important, is that the add, being always there, attacks the iron or steel wherever it. can get at "A paint film is not sure to be perfect everywhere, and if the air, carrying these corrosive acids; gets in even through microscopic pores or holes In the film (perhaps because of imper fect brushing, perhaps accidental puncture or scratches), the acid goes at work at once and the rust spreads* "Rust always swells and breaks up the paint over it. And so where iron If a. wall' is covered .with;.'A good' "SPC" OH, Cold pressed raw Unseed oil waterproof coat of paint , such-as pro-' Of-clear:hght color, tisedrto glveA durduced with whlte-leod-aiSdfoik ; its' able high-gloss-for exterior painting. smooth surface is easily washed ^ond- "Heavy Bodied" and "Air Treated" Oils heed.never- afford a resting* place >for germs. That; ia-whjr :eve^.<Ifi^7-iijf{ surface in. a hospital 'is painted.- ;; : 'Ofyhi^h.;^^ific!|g^avify. ..Used straight.' |fbr.toakiog::i^rinWng;toiti. and plate oil:;. Also used to the manufacture of prepa The lesson^learned rations having a linseed oQ base. ^ bosplteL-^'.^weUi-oei-ptrtlTh^^rat^l^ in the; hbrne*:, In the|.kitten BVom our ample stocks we can flU food & prepared^washablApA^tCd^^aeM1 your -orders promptly. * facea are --unquestionably - needed;- sleei^gandUvrngjrooms-andvJparttc- uiartynut^rtesrequlrethits#ih`jb^ tection. The> fd^ feaiurCAb^^l^Sti to.- tfc|;hps^.'bitve6^^ 457 Chestnut St. Philadelphia, Pa. other words, the boiled oil apparently dries flrstirtho nrocess -istStin going -on |ihhi^ekto^hav:iJA^ptri*}daat'p,hut the same time that raw oil with drier I1 a**r laily d- . 'Properly handled by one who under` ' action, boiled oU will give* --ults*: ^The^same Cmay be ofi combined Wtth Jdrier. ;be;iiod la, lu mot ruieA 'r.ofipersoflil-prt^erenc^; . dr in; of bo')< a oil at ads thor> who are t and causes thenfe'. think it is thoroly ary when it 1*?^ | Tnlo may load to trouble Wh q 795