METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001
METH OD STATEMENT FOR THE SURFACE PREPARTION AND PROTECTIVE COATING
Document Issue Purpose
: For Approval
: For Review
: For Construction
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2!0"!201#
Issue$ %or Review Review
SD&
REV
DATE
REASON FOR ISSUE
Prepared by
Reviewed by
Approved by
Approved by Compay ! F" SMIDTH
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METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001
CONTENTS #.
Purpose
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Re%erences
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De%initions
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Responsi'ilities
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Pre-'last Preparations
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Am'ient Con$itions ()uipments A'rasives
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Cleanliness $e*ree
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Precautions
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Mec+anical Cleanin*
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Cleanin* o% sur%ace 'etween coats
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Paintin*
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Paintin* Applications
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Application ()uipment
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Re coatin* interval
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&an$lin* o% coate$ items
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Dr, Film +ic.ness
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Repairin* o% coatin*
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/ualit, Control
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last Cleanin* an$ Paintin* Inspection Report
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METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001
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PURPOSE
+is Met+o$ Statement provi$es t+e *ui$elines %or last Cleanin* an$ Paintin* o% Fa'ricate$ structural steel materials Mec+anical e)uipment %or D Cement Pro3ect at 4or.s+op as well as at Site! $.
REFERENCE • •
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DEFINITIONS
C8MPA7?
D Cement
C87RAC8R
Z(A; Construction (n*ineerin*
C87S@;A7
F; Smi$t+
IP
Inspection est Plan
/C
/ualit, Control
MS
Met+o$ Statements
RESPONSI-"ITIES •
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eneral 4or.s+op Instructions 520560-!0 (7 IS8 506-2:2012 Preparation o% steel su'strates 'e%ore application o% paints an$ relate$ pro$ucts Steel Structure Paintin* Council 9SSPC ASM D6665 est Met+o$ %or ;ow Concentrations o% ;ea$< Ca$mium an$ Co'alt in Paint ', Atomic A'sorption Spectroscop, A8AC =">!02< ;ea$ in Paint< Atomic A'sorption Spectop+ometric Met+o$ or e)uivalent s+all 'e use$! Desi*n Drawin*s an$ Stan$ar$s Pro3ect application $atas+eets
Pro3ect Mana*er s+all 'e responsi'le to provi$e recourses %or eecution o% t+e activit,! Paintin* supervisor an$ Paintin* /C Inspector s+all 'e t+e responsi'le persons %or 'last cleanin* Paintin* activities in accor$ance wit+ eneral 4or.s+op Instruction 520560-!0 an$ t+is Met+o$ Statement!
PRE-"ASTING PREPARATIONS Page 3 of 10
METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001 e%ore s+ipment %or 'last cleanin* o% %a'ricate$ items< s+all 'e c+ec.e$ %or %ree %rom spatters< %lu or ot+er %orei*n matter! All s+arp e$*es< %illets< corners an$ wel$ seams s+all 'e roun$e$ or smoot+e$ ', *rin$in*< min! RB 2mm! An, ma3or sur%ace $e%ects< particularl, sur%ace laminations or scars li.el, to 'e $etrimental to t+e paint s+all 'e remove$ ', suita'le $ressin*! All wel$s s+all 'e inspecte$ an$ repaire$ i% re)uire$ prior to 'last cleanin*! @n$ercut an$ rou*+ *eometr, is not accepte$! All oil an$ *rease traces s+all 'e remove$ ', solvent cleanin* prior to startin* 'last cleanin* operations! (.
AM-IENT CONDITION
last cleanin* s+all not procee$ on sur%aces t+at are moist or ma, 'ecome moist 'e%ore t+e application o% primer! lastin* s+all not 'e permitte$ w+en metal sur%aces are less t+an 6 $e* a'ove t+e $ew point or w+en t+e relative +umi$it, o% t+e air is *reater t+an 5! ).
-"ASTING E/UIPMENTS
+e compresse$ air use$ %or 'lastin* s+all 'e %ree o% water an$ oil! A$e)uate coolers an$ separatorsEtraps s+all 'e %itte$ an$ t+ese s+all 'e .ept emptie$! +e $isc+ar*e pressure s+all 'e measure$ at t+e nole wit+ a +,po$ermic pressure *au*e o% " .*Ecm 9100 PSI an$ not less t+an 5!5 G*Ecm 90Psi! *.
A-RASIVES •
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A'rasive %or use on car'on steel an$ low allo, steel s+all 'e in accor$ance wit+ eneral 4or.s+op 520560-!0 A'rasive use$ on stainless steel s+all 'e %ree %or c+lori$e< inc an$ iron contaminants! Compan, approval s+all 'e re)uire$ prior to use o% a'rasive!
C"EAN"INESS DEGREE •
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lastin* to Sa2H accor$in* to (7 IS8 501-1:200" 9Preparation o% steel su'strates 'e%ore application o% paints an$ relate$ pro$ucts - isual assessment o% sur%ace cleanliness - Part 1J: Rust *ra$es an$ preparation *ra$es o% uncoate$ steel su'strates an$ o% steel su'strates a%ter overall removal o% previous coatin*s is re)uire$! All $ust must 'e completel, remove$ 'e%ore paintin*! +e rou*+ness o% t+e 'laste$ sur%aces s+all con%orm to t+e $eman$s ma$e ', t+e paint manu%acturer an$ at least *ra$e K%ine to me$ium L accor$in* to (7 IS8 506-2:2012 9Preparation o% steel su'strates 'e%ore application o% paints an$ Page 4 of 10
METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001 relate$ pro$ucts - Sur%ace rou*+ness c+aracteristics o% 'last-cleane$ steel su'strates - Part 2: Met+o$ %or t+e *ra$in* o% sur%ace pro%ile o% a'rasive 'lastcleane$ steel - Comparator proce$ure or Ru*otest 7o! 6 7 =a i% no ot+er re)uirements are speci%ie$ ', t+e paint manu%acturer or in t+e paint pro*rammes For pro*ramme t+e rou*+ness o% t+e 'laste$ sur%aces s+all con%orm to me$ium or accor$in* to t+e paint manu%acturerNs re)uirements in t+e paintin* speci%ication .
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lastin* s+all 'e stoppe$ su%%icientl, earl, to allow application o% t+e primer on t+e 'last sur%aces 'e%ore sunset an$ 'e%ore an, oi$ation $evelops! 7o visi'le oi$ation is accepta'le on 'last cleane$ sur%ace prior to paintin*! A 25mm wi$e strip minimum aroun$ t+e 'last cleane$ sur%ace s+all not 'e painte$ wit+ primer unless a$3acent sur%aces are alrea$, painte$ or it is t+e last part o% t+e sur%ace to 'e prepare$! +e le%t strip o% 25mm wi$t+ s+all also 'e 'last cleane$ net $a, to ac+ieve t+e re)uire$ $e*ree o% sur%ace preparation! Durin* 'lastin* i% an, sur%ace $e%ects li.e laminations< col$-laps ect! $etecte$< s+all 'e repaire$ an$ t+at sur%aces s+all 'e re-'laste$! +e sur%aces w+ic+ cannot 'e 'last cleane$ $ue to un-access or 'last cleanin* is impractica'le ma, 'e cleane$ mec+anicall, su'3ect to Compan, approval!
##. MECHANICA" C"EANING
Mec+anical cleanin* comprises power an$ +an$ tool cleanin* met+o$! Suc+ sur%ace preparation met+o$s s+all 'e restricte$ to t+ose areas w+ere stan$ar$ cleanin* is pro+i'ite$ or impossi'le $ue to access or $ust sensitive e)uipment presence an$ s+all 'e per%orme$ onl, wit+ t+e acceptance o% manu%acturer approval proce$ure an$ e)uipment use$ s+all 'e recor$e$! #$. C"EANING OF SURFACE -ET0EEN T0O COATS
8il< rease< $irt< $ust or an, ot+er contaminants s+all 'e remove$ completel, prior to t+e application o% an, succee$in* coat o% paint s,stem! #%. PAINTING #%.#
S1ora2e 3odi1io4 •
All material s+all 'e store$ un$er cover< pre%era'l, a ware+ouse! 8ut$oor stora*e< %or instance net to application site is accepta'le onl, %or )uantities Page 5 of 10
METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001 to 'e use$ on a particular $a, an$ provi$in* weat+er protection an$ provision %or cover are ma$e! •
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I% store$ in an enclose$ area< a$e)uate ventilation must 'e provi$e$ %or precautions a*ainst %ire an$ +ealt+ +aar$s s+all 'e ta.en< in .eepin* wit+ local re*ulations an$ normal sa%et, practices! All paint materials s+all 'e store$ in ti*+tl, seale$ con$ition< an$ never store$ unprotecte$ out$oors or epose$ to $irect sunli*+t! Recommen$e$ stora*e temperature: 5 to >0O c! Paint material cans s+all onl, 'e opene$ imme$iatel, 'e%ore use! Paints w+ic+ +ave *elle$ or in w+ic+ se$iments +ave %orme$ $urin* stora*e s+all 'e $iscar$e$! Paint materials s+all 'e issue$ %rom stora*e on a %irst in %irst out 'ase! Pro$ucts w+ic+ +ave reac+e$ t+eir epir, $ate s+all not 'e use$ unless c+ec.e$ an$ approve$ ', paint manu%acturer! Mi5i2 6 T7ii2
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Contents o% paint s+all 'e completel, mie$ an$ $isperse$ to o'tain a +omo*eneous 'len$! 8nl, power mier s+all 'e use$! @n$er no circumstances s+all +an$ miin* 'e allowe$! In case o% wo Pac. pro$ucts< 'ot+ components s+all %irst 'e mie$ separatel, t+en to*et+er to ensure complete $ispersion an$ miin*! Durin* application< t+e coatin* s+all 'e a*itate$ su%%icientl, o%ten wit+ a power mier to maintain pi*ments an$ eten$ers in suspension! Continuous a*itation $urin* application s+all 'e provi$e$ %or: a Inor*anic Zinc ric+ primer ' Zinc ric+ epo, primers c M!I!8 pi*mente$ coatin*s!
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Powere$ a*itators< eit+er clampe$ on t+e rim o% t+e paint containers o% 'uilt in a*itator in t+e case o% conventional spra, e)uipment s+all 'e use$! Paint w+ic+ +ave 'een mie$ in t+e ori*inal container s+all not 'e trans%erre$ 'e%ore t+e settle$ pi*ment +as 'een 'len$e$ a*ain into t+e 'in$er ma, 'e momentaril, remove$ i% re)uire$ to ease miin*! Paint s+all never 'e mie$ or maintaine$ in suspension ', means o% air 'u''les! I% a s.in +as %orme$ in a can< it must 'e remove$< i% t+e s+in is t+ic.er t+an 1 mm< t+e pro$uct will 'e $iscar$e$! Page 6 of 10
METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001 •
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All pi*mente$ coatin*s s+all 'e %iltere$ a%ter miin* unless t+e paintin* e)uipment use$ is %itte$ wit+ a$e)uate %ilters! 8nl, t+inners recommen$e$ ', t+e paint manu%acturer s+all 'e use$! @n$er particular con$itions< t+innin* ma, +owever 'e necessar,< t+is s+all 'e supervise$ ', t+e manu%acturers representative
#&. PAINTING APP"ICATIONS #&.#
Pai1 4y41em
+e t,pe< num'er o% coats an$ t+ic.ness o% paint s+all 'e as in$icate$ in eneral 4or.s+op Instructions 520560-!0 Para 5!5!#< 5!" an$ 5!5! •
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+e primer an$ su'se)uent coats o% eac+ paintin* s,stem s+all 'e o% t+e same ma.e! +e manu%acturers instructions< inclu$in* sa%et, precautions< %orm part o% t+e present $ocument an$ s+all prevail over all ot+er instructions in case o% con%lict! +e $r, %ilm t+ic.ness s+all not 'e less =0 o% t+e speci%ie$ t+ic.ness Ambie1 Codi1io4
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Coatin* application s+all not 'e per%orme$ w+en weat+er con$itions are not as per t+e Manu%acturers recommen$ations< an$ particularl,Q a In $ust, or win$, weat+er< or $ust la$en air! ' In areas w+ere in3urious particles are in suspension! c I% t+e sur%ace temperature is less t+an 6Oc a'ove t+e $ew point o% t+e am'ient air! $ I% t+e relative +umi$it, is in ecess o% 5 9=5 %or inor*anic et+,l inc silicate primer application!
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enerall, w+en a$verse con$itions are epecte$ soon< out$oor paintin* s+all 'e stoppe$! I% it is rainin* eit+er $urin* or imme$iatel, a%ter paint application< proper steps suc+ as re-paintin* s+all 'e ta.en! 9(cept %or et+,l inc silicate primer! Paint application s+all not 'e carrie$ out i% am'ient temperature reac+es or ecee$s 55Oc! Pre3a81io4
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METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001 •
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last cleane$ sur%ace s+all 'e *iven a coat o% primer as soon as possi'le an$ not later t+an > +ours a%ter sur%ace preparation completion! I% oi$ation appears $urin* application o% paintin*< t+at a%%ecte$ portion s+all 'e re-'laste$ as per speci%ication! As %or as possi'le eac+ coat o% paint s+all 'e applie$ wit+out 'rea.! An, part o% t+e sur%ace t+at was misse$ or insu%%icientl, painte$ s+all 'e repainte$! +e net coat s+all not 'e applie$ 'e%ore t+e prece$in* coat is $r,! A%ter eac+ coat is su%%icientl, $r, or pol,merie$ an$ 'e%ore t+e net coat applie$< sur%ace cleanness s+all 'e c+ec.e$! Fres+ water rinsin*E was+in* o% painte$ area s+all 'e per%orme$ 'etween eac+ coat until satis%actor, cleanness is o'taine$! Multi-coat s,stems s+all +ave contrastin* colors %or eac+ particular coat in or$er to ensure proper covera*e! Sur%aces o% e)uipment an$ components in contact wit+ structures 9s.i$ 'ottoms< e)uipment 'ase plates an$ t+e li.e s+all 'e painte$! Supports %or items to 'e painte$ s+all 'e $esi*ne$ so as to minimie contact points! 4et paint s+all 'e protecte$ %rom $ust an$ ot+er %orei*n matter t+at coul$ result in inclusions!
#'. APP"ICATION E/UIPMENT
+e application met+o$ s+all 'e *overne$ ', t+e manu%acturers recommen$ation %or t+e particular coatin* 'ein* applie$! Spra, e)uipment s+all 'e in compliance wit+ manu%acturers recommen$ation< i!e!Q noles< spra, tips< spra, an*les< airE %lui$ pressure< etc! Roller application o% t+e %irst primer coat is strictl, pro+i'ite$! #(. RECOATING INTERVA"S
(ac+ coat s+all 'e allowe$ to $r, or cure %or a time speci%ie$ ', t+e manu%acturer 'e%ore t+e application o% an, succee$in* coat! I% t+e speci%ie$ perio$ 'etween coats +as 'een ecee$e$< sweepin* wit+ a'rasive or t+e corrective actions as recommen$e$ ', t+e manu%acturer s+all 'e carrie$ out! All pro$ucts t+at +ave 'een epose$ to weat+erin* %or an, len*t+ o% time s+all 'e care%ull, c+ec.e$ %or c+al.in* or sur%ace contamination an$ cleane$ ', appropriate means to o'tain a soun$< contamination %ree sur%ace %or su'se)uent coat application! #). HAND"ING OF COATED ITEMS Page 8 of 10
METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001 •
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7o +an$lin* s+all 'e per%orme$ 'e%ore t+e coatin* s,stem is completel, cure$! 4+en +an$le$< special precautions s+all 'e ta.en to avoi$ to $ama*in* t+e coatin* s,stem! 4+ere paint +as 'een $ama*e$ in +an$lin*< repair s+all 'e carrie$ out accor$in* to mentione$ in section KRepair o% coatin*L! e%ore s+ipment an$ pac.in*< Inspection s+all 'e o%%ere$ to C87S@;(7 EC8MPA7?! Finis+e$ painte$ pipin*< steel structure s+all 'e li%te$< lowere$ or suspen$e$ ', usin* ru''er or canvas 'elt wit+ remova'le pin an$ clevis on one en$ to permit removal o% 'elt wit+out $ama*e to t+e paint!
#*. DR9 FI"M THIC:NESS
+e tolerance limits %or $r, %ilm t+ic.ness %or eac+ coat an$ t+e total coatin* s,stems s+all 'e strictl, %ollowe$! It s+all 'e o'serve$ t+at ecessive %ilm t+ic.ness ma, 'e $etermine$ $ue to solvent retention an$ improper curin*! #+. REPAIRING OF COATING •
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Repairs s+all 'e per%orme$ as soon as possi'le an$ in accor$ance wit+ t+e relevant stan$ar$s o% sur%ace preparation an$ speci%ie$ coatin* s,stem mentione$ in eneral 4or.s+op Instruction 520560-!0 Para! 5!5 All $ama*e$ an$ loosel, a$+erin* paint s+all 'e remove$ an$ t+e sur%ace cleane$ to t+e ori*inal speci%ie$ stan$ar$s! ($*es o% t+e surroun$in* intact paint s+all 'e %eat+ere$ approimatel, 50 mm in %rom t+e $ama*e area! 8ri*inal paint s,stem s+all 'e re'uilt as per speci%ication! Paintin* a%ter erection wel$in* s+oul$ 'e per%orme$ imme$iatel, a%ter t+e wel$in* wor. is %inis+e$ in or$er to minimie t+e cleanin* wor. 'e%ore paintin*!
$,. /UA"IT9 CONTRO"
Durin* 'last cleanin* paintin* t+e %ollowin* instruments s+all 'e availa'le wit+ /C Inspector %or inspection! 1! 4et Film +ic.ness au*e! 2! Dr, Film +ic.ness au*e! 6! &umi$it, au*e! $#. -"EST C"EANING 6 PAINTING INSPECTION REPORT •
C+ec. ;ist %or 'last cleanin* Page 9 of 10
METHOD STATEMENT FOR THE SURFACE PREPARATION AND PROTECTIVE COATING DOC. NO. Zealcon-MS-SPPC-001 •
Sur%ace Preparation Protective Coatin* Report
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