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LEAD INDUSTRIES ASSOCIATION
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LLA Foraola 328
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A RED LEAD-COUMARONE PRIMER
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FOR SEAWATER IMMERSION
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PI IMS the Load ladutrioe AaaodaUoa taitiated a torioe of teeta eemparfa* aatieorroalra painta aod printer* for ahip holla. AfUr a thoroagfc preliminary aerooBinc, eoote of thaoe painta vara gtraa foU-acak "aarrka teoU" by tba Karr te a oooUnainf profrxm daatrnad to tod Bad develop M* coaiittf* vtth improved aonrico poteetial aad teottaajr. Thaaa aarriea teeta. carried oat oa the haila of throe U. 8. Doafcroytr*. vara naatip eanpietad. Oa tba baala of toot Toealta, rad toad nraimirnri primer (ULA. *SJS) appear* to Kara parfonaod I comparably to tha wn spaadn *14N (MIL-IMMB4) aoatiaf vhkh la tba
H IKan auodard far ablp bottom aarriea for aatt-foaliaf ayataaoa atbar thaa
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Oa ooa of tba throe ahlp hattnw, it vaa fooad that tha rod load printar afforda protoctioa that U aqaal or rotr aUgbtiy hotter thaa Mary atandard anUeorrooiao UN. la a aaeeod eaoa tha rad Uod prtatac vaa iodfod to ho alifhtlj Inferior (arorafo merit aeon ad tti n Mi). Aod la tba third caaa no atrniAmat dlsmaeo is parfonaaaea botv**a rad hod primer aod #14N vaa dieooraibb.
Thla typo of primer ahoald ho applied to thoroaffcly daanod aorfaeaa far boat prrformence. la thaaa tecta, tha bottona vara taivlhlaatod to hart motaL A oltftil Unprot o pat ta orormS performance vaa aoted vhea tha bara aarfaea vaa traatod vtth Nary Fbrmola No. 117 pretraaDaeot bafora prteaiaf.
Additwal taformatioa oa thla palat fonealotJoa or ethar apaeifa paiat problem# cam bo obtained freaa tba Load ladaetriee Aaacnattoa or froaa tha
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LLA. Formula 328
A RED IEAD-C0UMAR0NE PRIMER
FOR SEAWATER IMMERSION
f?UKDAMEJfTALLY, tho oootinf qntom daacrtbod hart eoaaista ctinl * load aaltoorroaive prtmar tad teloh wrttii of otthor hot or oaid plootlc. For boot parfartaaaeo of tho wotiiL surfaces moat bo thoroughly riaottad taf dry at tho ttmo of appltcatloa. Saacfnlaottat to tho bon mstal before potuttag la riowniamdod.
While a metal modIttontug ceatiat prior to prfmlat U oat moailitnrT, tboro la some evidence that performaaee of tho eoetiajr (jAa la abghUf Improved whoa tho boro motal I* os treated. Tho Formula No . 117 pfitrootmmt (Military SpedVattoc H1UC-1U3, available apoo reiotot to tho C O, Naval Ariattoo Supply Dvpot. M01 Tabor Avaaat. PhiladJphla. Fa.; attantioa Cod* COS) was applied la a Oilekiioot of OJ to 0A mile la tho tasta oa throo
V. a Portrayal hallo. Aa tho aomo topitoo, tho surface preparatory costing la
intended to ccodrtioa tho aortal surface aad insure a dm bead bitworn It
Where oo metal conditioner It aaod. tho rod load rrimer la applied directly ortr the doaa. dry metal surface. la either eaoo two or throo cooto of tho priaoer Aoold bo applied to roach a minimum dry 61m thidmoos of $ adle. Record* la tho Boreas ladirato tNe prUnora were 'applied la throo coats." Normal application la bp spray rather thaa brush. la spptyto* tho primar, a minimus aryla* period of aic boors should bo aQovod botwoaa eoota aad ala hoora brforo tho anti-fouling paint.
A variety of enti-fouling coatings aro la current aao for ahlp tnrttnme aad atoilar service. Cold piatlx coating No. 106 (MIUP-lNSlj aad Hot plastic No. 16 HPN (M1LP-1MSX) were aaod la Navy toots. Othora tarindo Maritime Commtattoo coal tar-rcem asti-foollnr coating 6X-MC-406 aad Baraoa
of Ships Formula Not 1X1. a vinyl anti-fouling coating (MlUP-ltOtl). Lota la
known about tho compatibility of tho oyrtecn. L.I.A. J/BuShlps 1X1, aad tho qrataoi should not bo aaod without prior toots.
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tine OxJto (TT-Z-901) ............ Zinc YaOow (TT-t-tlATna I).. Mie*. m Xaah (KI1^M-U17,
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Viacoaity ("Parloo" or oq*ia.) Hi-FWi Naphth* (MIL-X-U171
T>PoA)..................................... AlipKatk Migli ii Spirit* (BJL
Pin* Oil (LLL&SSS)..................
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t) Thto Mtolt mj to prapamt It teoMu* tto .............. l raatoa ui ***14 ta*l ter terdtor to i totowito) at WF, atotif Ito tot I--Ito mto toUri* liftnH" Mfl to afl mt)u4 to. All tt Ito wuila apirtta ut to fSVw at Ito maint *-
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