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Prefreafment Specifications
No. 3 Basic Zinc Chromate-Vinyl Bufyral
Washcoat
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Approved at Tentethw, Mordi 26,195S
Steel Structures Painting Council
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PtUitMtr STEEL STRUCTURES PAINTING COUNCIL
4400 mil A--m--
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Pretreatment Specification*' ; : ****-.*- *4-
No. 3 Basic Zinc Chromate-Vinyi Butryal Waobcoat
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^oiral far lb# httfe iko tiioMli^vfaqrl btftynl-
waabeoat prHreilpaat of atnotaari atari aariaraa
friar to fit*lag.
1 Mnlltoa
U Baric Sue Cbraanato-Viayt Batyral Waabeoat (mariraan rrfarri to aa nA prfcnar) ia praInataaot tar netafa wiudt taarU akli tba aoatol and at tba aaaaa lima lonaa a protaetbra rinyi Ska which mtruina an fadubtiiva pipataot to Irip proraoi rnatfa*. Tbfa tob<nl la wpfil+i aa 1 ecaapoocDU wfcfch art miari toyefbor jat prior to ana. Tba baaa contain. aa akofari aotatian at pdf viuji botyrai nria pigmented wilb baric line ebrvMto. Tba diluaot aoataina aa alnibol aolatba at pbcapberie arid wkicb mdt oitb tba riayt faria, tba pigtaanl, aad tba atari-
U It la iataodad tKat tUa pratraatawat fca aaad primarifr oe ritoa atari fraa at nat aad aeaW cv friTaatMd OMtal; hat it BMijr ba aaad, aha apari* Sad, co atari afefc Ufbtlp aifliiraat adB acala ar rarj aiipbt amoant* at tad.
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S.1 Baric Cae CTawaata-VTayl Batyrri Waabaaat pratiaataaant abafl coariat d tba (rikwtap aa^aaaaa at aparatkaai
1,1.1 Spari&d tartaca pppparatiooa abS ba ( platad fine Aap dat <r dirt ibal) ba faaaoaad Boat tbaaarfaoa. OB aad pnama abafl ba raaaaad bat tba auriara bp watbodipaaridad ia >61*0*1* 1-MT,
cM| rta,t cUtMM1n--fam
LIJ Aa aooa aa prartkabla aad briura nalkf of tba auriW ooeara, tba rmtaca ahaS ba pratfaatod
arttb aaatarial aMi toaata tba feBowfap apadleatloaa: MUcC-UnU dalad 17 Mardi 1951, cr Bwraaa <SMpaFonaaia 117,.
LM Fbaraofaaaa of baaa )*>]! baadxadwitk aaa ariaaaa atdSoaat aa fbDova: F5wt braak op tba
mu M la ifc* batvkbftvoodM
wrliswral atimr, or nbar, aad nix to distribota tbapiiaMataaaotpUwaapboutUiabaaa. Aitartba baa. b ihtraU]i aabad, aknriy poor aaa tdaaa of tba dflaant iato four mhaaa of tba baaa witlt aoaataatapitatlaa. DoaotpoarofftbaEqaldaUeh baa aapamtad flat tba ptaaaot aad tlxo add tba dlaari to tba aattlad pipmant to aid aairinp. Malarial arfakk k Dot aabad faupaij may pi aad ba aadk Ibr aaa. n>a araabeoat btoa abril ba aabad arftbthadilaaat iaipaiwtHiaa wbkb wgbaappWad wtUda ab to aipbt boon aftar adrinp. Tba pao> traataiwt ia ataat aCartivt abaa (raridjr mbad. Storapa parioda ia aanaa ofaipbt bota* atoj aaaba tba ariaad aMtarial i
LU Apply tba --d>aoat pratiaata>aat by aptay, taper braaMop. Spoytnpia paoarmBy tbaprfairi aMtbod. bat haaahfaap aaap ba darirabb o*r laoph or peoatp prapaaad ataaL Rothr eoatinc may ba aaadoaly tfapacilwd. Pakatbraabtoabovidbadaap ad drjr, or watlad *itb alcoboBe aoirmta. Tba raabeoataboaldbaatralnadbafaaaaprayiap. Wboai ^aayiapaaaidaaraaaalrpr--uracr Uqoidpraaaora,
14 Apply to a driad 6m tblckuaa. of 04 to B4 pfla rbtrb ia aaaafly obtalnad at a uraadtnp rata of about HO to 100 acpiara IWt par paboa. Not. that at tbh tbirknaa, arbicb abouM not ba airaadad, tba baaa awtal arffl abow tbrouph tba vaaheoat aa artdaaaad by uaaraa eobriof. Tbia fa tba acaoMd ap> paaaaaeat da aet attaaipt to apply traebeoat ao aa
kUi^a
14 Wbaaaprayad, tba waabeoai anal badmaitad OP tba mtHaca oat s If dtartit* ia aaroontarad. taova tba pop ricaar to tba amtata; it afaaady vitbia oil
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MaofllNrfM,dHmM>uaUvilr]n 249 Tfcb prstrmUascl in not faiteodod for d m ns a
noorfatmrt tba Ihprid pranara, or add Ihtnnnv abop mat for *srl aod It should bo ooatod trith tba
M UrxW ihwM tmnmmry. Aid up
nn**Btlooa. Ihhmtnf any br* to 29 par coot by nlm of `
prim coal of point bafora expoatira. Hmiw , it -tony yaovido tarspnary protattion for normal oat*
laopnyanol or huaol KoeaaSy, lit*
door oapaaura* of aavaraJ wwt prerldad It k oot
wffl ^ngr aa
aapoaad to vary humid coeditiaas or walardoss aet collars oe iu mriaca
%S Wfcna npot tmaiinf. nnt only pod hi old paint. Orarlap or oooplato-oovanpa of old. paints ia not ImuM providsd ndbnranon of th^ aoabeoattotbseidpolatitaathdKtoryaadttootA
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4. Safety FraaatisM * ^
U Waaheoot pHan aatiia highly voialfla aad.
paint ia not Itftod.
flawnaMa aolvaaU, Tha usual safety pneaotiooa
M Waabooat tint muuot ba aaad vrfchiB a ataxfe mh b of ftifbt benn Mfadbm wfiifc dflwat tbtM
la handling BaatmahlsaoiTaarts should baobaarrsd. Taafa haaarda to panoamai aaaat ba hqpt la i
at hat
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M Phd nay ba appfird aa aoa it dry--usually tat half to oaa boar, thbnngh a batabjiaifoMbac
Lt It it toandad tbat tVfcpsutiaatnaut ba ap>
pEsd ovsrdsaa. dry atari; faoasavsr, a atigbUydaaip
sorites nay ba palm ad star without bona, if tba
aariaoa it aaoaaatvaly oat. tba vinyl butyrri ratio
9batb>oaraoatofaaldtlsoaadfanaa|ai.ortba'
driad Chi adB lara arUta, baaotoa brittia aod lack
adbedoo to tba ataaL
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U Al varfc undtr tbit npacdbutioa ahalbaaub*
jaottohwtiarlifaibytbaooiMrorbitmiraaantaUm
Al parto of tba atari abaft ba arnuaibla to tba Tfc* wlw4r# iltoll pwawd u h 4i mA
as k (bond dafcclivo undar tha apad&utiooa. If
tha eontractor doaa net agraa with tba Inapartar.
tba arbitrating or Mttbant procodura astahihbad
to tba natnrt. t ujr, that! ba folkvad, If aa
oUntba cr aatlhnwnt procadara b aatabiabad.
tin pmosdnra apacifiad by tba Amritaa Arbkm-
lioo AMocAMiaB aliiA )a
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A4 SCOPE. Tba rannaniaadatltina motainad ia tblaappaodiaaia bait rad torapraunlearraat food prarlica, bat ara act to ba m--idarad aa raggita-
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AJ Tbla pratraalmanl ihoald ootbarnaaldatad-.ma tort of point. It it fatandad far aaa owr rlaaa. dry. dmcaiad ataal; bowrrar. it doaa aot tnrl wal aw pboapbala traslad ataal, aad should not ba mad ovar paint ar nailing oik. Wbila it aMat ba wad no bara natal for baat raaalta. It baa aboo* naHt wbao taad aa a pratraatward onrar alpbtly tuatad aorfaera or otBI aeala vbao enaaparad to aotoraotbmal paint ayalaana attnat tba pratWat mad orar tba mu m typa ofMthti
AJI *nda praWaatoMwitnoy ba-tand to bvadl tana1'' vaotbnal paint* to (alnalaad aurfaoaa or atoiakat ataab Sulraot riaaninr ofaarb aorfbraa, arm Iboofb apparently rlaaa, b adriaabla badtaa applyhf tba pratiaatnaaoC
A4 Abaoat al paleti al adhara twl to Ihh protraataaaad; anaptina ara oartala typaa of vinyl paint* and atnaa hoqiiara; tbaaa eoatfapi any to* iparaaabrt*rnadiaUcrbnasdbif nat. Patotacon* tahlnt aleobcd or batooa aobranU paoaraBy da*
A4 Tbla pratraatmaat any ba aaad to bhibit mint ttodar mtoappiiad aaphalt aad coal lar oaatlapa. or tdbar mating* of fan paranbBHy and Itthar nanad Inhibitln aopndty.
Ai Baale dm rbrotnala pigmaat fat tbit prrtraat Mad baa a tondmry to aftth bard te tba oordsbort In avoid dUBralty fat dkparaiaf aattlad rljamrt. fmA nwtarhl aboaW ba aaad, aad tba aidant an* tartnl ahtoy* aaad Ital.
A.I DatnOad rrantraAlbat and pbyalnal prnpartlaa of tba anbod an ttrvamd In tba rpndad apart!* cation*. AaonaiaryoftbaroawpmtUonlaaafuflnnil
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w* *. b a s ic me enKaant-vom. sunrauu. w a s h o u t
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Aa aqaal vntmw cf bepropy) lintel (99%)
Polr*iy5 Urtyrl rate... 9.0% by waigbt toby ba wbatkaud for lb* atbyt aleobei. On*
Balc one dironiu......... li
rohmM of add dflurot fa arfaad with fear Totomoa
M<nirinm wScato.......... ' U
- 1 of pl*otad baia Ja* prior to oaa. Tba aotoad
famphlarfc....................... 94
: aaurial abeott vatfti aboat 74 pooatfa par (alfeai
Beljri aknfatit. aona !.... S94
--. sadabooM contain aboat-404pat 1 by rob--
EUtyi alcohol.................... *14
rf aoorokifla atatur.
AeU dBaaat
. MU
S%!lKl>kfc ac....... lA4%byarai*l*
Water (mariai--)........ 1*4
Etkylairatni............ . (||
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U Di^UMHUnl|nriiiMi(bi4f^f onndfrt--; bcararac. the woahroal ohoold normally *y to hawOa bo IS la M aitwUa. and dry far tacoaUa* ia o m half to am bow.
A-9 Batyl aknfacl (tatooi) awy ba mIU to radata bhaohlng darb bitfa humidity aypEeatlca.
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STEEL STRUCTURES PAINTING COUNCIL
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