Document 0JJ0a4eKaDOKa9g4Y6b5j97Ln
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4 Ways REP "LEAD RESISTS EFFECTS OF WATER
... guards against Rust
Maintenance engineers have long recognized
Red Lead as the "standard" metal protective
paint. This acceptance is based, to a great
extent, on its marked ability to stand. np
against moisture, a powerful factor in the
rusting process.
^
Now, Scientific research into the inherent properties of the pigment itself/ shows just
how and why Red Lead resists the effects of water. Briefly, there are four reasons.:
1. Red Lead resists water "plcfcap"--If a senes
of various metal protective paint films are weighed and then submerged in water (salt or fresh), it is readily noticed, op reweighing after several days immersion, that Red Lead films have outstanding resistance to the ab sorption, or "pick-up," of water.
2. Red Lead resists passage of moisture--Rusting of metal will not take place if water dpes hot
Teatlng Water- Permeability of
Paint Films-- With, this stand ard apparatus a measure of the amount of water., that
passes through a unit of film, is obtained. ,
Experiments show that a straight linseed oil .film al lows three ttwes os much wa ller to pasSythrough the-film as when the same film, is pigrnentei with Red. Lead.
penetrate the paint film to reach the metal. Water permeability tests of paint films feee-C ^Hustfatioa-atJ&weHeft') show, beyond ques tion, that. Red Lead is one pf the most effec tive metal protective: pigments^ because of., its stubborn resistance toi the`passage off moisture-through the film.1
3.. Red Lead resists solution by Water--The action of water! on .paint filrn^ results in a partial I dissolving of the,film.lMany metai protective : filmsloses considerableperbentsgebyweight. . of-their films through solution in Water. On : die <>the hand, the solubility losses of Red! Lead pamt films are practically negligible.
protective paint. So no matter what price
paint you want, ytmTl get a better paint if
it contains Red Lead.
'
WSHf FOR BOOKLET --"Red Lead in Corro sion Resistant Paints'' This authoritative booklet; ^available to those responsible for formulating >nd makjng^pSmts for struc tural iron and steSIJrdescribes in detail the scientific reagonf^for Red Lead's superior protectianrlt also includes typical speeificatijup-fimnulas. If you haven't received your c6py,-address nearest branch listed below.
4, Aedlaad resists distortion by water--RedLead
films have: little tendency to shrivel or;
. change (fit size during immersion in water*.
Tips is imperative to good,metal protection,,
For good protection depends on gtjOd adhe*.
aion, and a paint film, maintains hotter adhe^
sidn When h is not distorted by the action of
thlewat^r.
,:
Remember,joo, Red Lead is compatihle with practieaUy^ERrvehicles. c^mnrOnJyi iised in -metal ,protectivgL-paijits,.lncIiKling|-thejasu !i dayinjaLW
I . RID. LEAD Improves ALL Metal Paints
The rust-resistantproperties of Red Lead are sd pronounced that it improves any metat
The^elte^l~al_Qur_xtensive experience with metal protective paints Jar-both iindenoater and abnospheric-'itse is available through our technical staff-
NATIONAL LEAD COMPANY: tfetr Tat* 6; Rafi'sln Si Chicago 6; Cincinnati S; Ciereiond IS; St. Louis 1; San Frandso? 10: Boston <t. (National Lead Co. of Mass.!: PUlladelpbia 7, (Jobs T. tsifls & Bros. Co.!: PUtsburpS SO. (National Lead Co. of Pa.); Charleston 23, W. Ta., (Evans Lead Dirision).
DUTCH BIHf
BED LEAD
KD-3832A--American Paint Journal, January 6--Paint, Oil and Chemical Review, January 23 ~k
0000-NLI-000015874