Document ZnzxyMraRvvYeqMKVnaGMo9LL

spfctficatio?i for fxtfrtor coatings EL PASO PLANT - ASARCO. VAC, 1. Scope and Intent This specification provides requirements for the application of protective coatin.es on all types of exterior surfaces throughout the FI Paso Plant of ASARCO, Inc. It is intended that all votT: shall he done in a rorhmnnlihe manner rith no disruption or hindrance of plant operations unless arrangements have been previously made. 2. Selection of Coatinp Systems Coatinqs used for various types of surfaces shall be selected from the following table. Coatinns listed are primarily PuTont products. No substitu tions shall be made unless such substitutions arc previously approved by owner. The systems shown in the table are not intended as complete instruc tions for required worl: especially in the case of surface preparation. For example, if it is obvious that solvent cleaning is desirable to eliminate the possibility of a ereasy or oily film on the surface to be painted, such cleanin'* will precede other methods in accordance with specifica tion SSPC-SP1-63. In all cases the worT: shall be done in a manner which will meet the requirements of the applicable specifications of Steel Structures Paintinp Council. May 1, 1977 HER 0000227 page 2 New Type of StirfaceRecoat Construction Structiiral steel, piping, tanks, and black iron siding Non-chemical environment to 150F 3 4 High color retention, chemical environment 5 6 Steel with 150F to 800F surface temperature 7 r Calvanized steel siding Transite siding s8 n0 "asonry surfaces and wood trin m 10 Steel columns where attacked by corrosive deposits (bottom 6 feet) n 11 Sulfuric Acid Planf, steel 12 12 3. Color Guidelines (DuPont Standard Colors) Masonry and wood buildings including trin to be painted Canyon Sand. Metal and transite siding on buildings to be Loan Brown in ore handlinr and other locations subject to heavy accumulations of dust from plant operations. Siding in other areas to be Desert Beige. Structural steel to be Loan Brown in dust accumulation areas and Shale Cray in other areas. Note that a special specification is used for botton six feet of columns in corrosive dust environments. I!ot metal surfaces to be high temperature aluminum as noted in specifications. HER 0000228 pape 3 3 PAINTING SYSTEM FOR EXTERIOR HAND CLEANED STEEL SURFACES (A?tBIENT TO 150F SURFACE TEMPERATURE) Surface Preparation Hand or power tool clean to a derrec of cleanliness specified by the Steel Structures Painting Council SSPC-SP2-63 or SSPC-SP3-63. Requires removal of all loose rust, loose mill scale, dirt, grease, loose paint and other contamination. Spot Prime DuPont 373-851 Red Lead Primer at 1.5 to 2.0 mils dry film thickness. Allow to ovemipht dry. Prime DuPont 373-851 Red Lead Primer at 1.5 to 2.0 mils dry film thickness. Overnight dry. Finish 2 coats 81-Line DuPont Du lux Enamel at 1.5 mils^ dry film thickness. HER 0000229 PAINTING SYSTEM FOP EXTERIOR SANDBLASTED STEEL SURFACES (AMBIENT TO 150F SURFACE TEMPERATURE) NON-CHEMICAL ENVIRON?TENT Surface Preparation Sandblast to ''Commercial Blast" as defined by Steel Structures Paintinjr Council, SSPC-SPfi-63. Requires removal of all mill scale, rust, surface contamina tion and old finish. Prime immediately to prevent degradation of the blasted surface. Prime DuPont #.VMS-851 Red Lead Primer at 1.5 to 2.0 mils dry film thickness. Allow overnipht dry to top coat. Intermediate DuPont *07-813 Buf* Intermediate Primer at 1.5 to 2.0 mils dry film thickness. Allow overnijrht dry to top coat. Finish 81-Line DuPont Dulux Enamel at 1.5 to 2.0 mils, dry film thickness. HER 0000230 pape 5 POLYURETHANE PAINTINC SYSTEM POR HAND-CLEANED SURFACES IN CHEMICAL ENVIRON1 TINTS Due to sacrifice in surface preparation this system should only be used when it has been determined sand blasting is impractical. Surface Preparation Hand clean or power-tool clean to Steel Structures Paintine Council Specification SSPC-SPS-6S or SSPCSP2-63. Remove all dirt, crease, oil, rust, loose mill scale and other surface contamination. Pre viously painted surfaces in pood condition should be thoroughly cleaned of all contamination and dried prior to refinishinr*. Sand to smooth surface and to remove ploss of the old rinish. Prime Coat RARE STEEL - DuPont 37S-851 Rust Resistant Metal Primer at a dry film thickness of 1.5 to 2.R mils. Allow overnight dry to top coat. PREVIOUSLY PAINTED SURFACES - No primer required. FINIS!? COAT (S') Two coats PRION Polyurethane Enamel (S2fl-Lincl at a minimum dry *ilm thickness l.S mils per coat. HER 0000231 pape 6 EPOXY/POLYURETHANE PATNTINC SYSTEM FOR EXTERIOR SANDBLASTED STEEL SURFACES (aiibient to 200f surface temperature! CHEMICAL ENVIRON* DINT_____________ Surface Preparation Sandblast to "fonr>ercial Blast" as defined by Ctrcl Structures Paintin'* Council SSPC-SP6-6`*. nenuiTs renoval of all rill scale, rurt, surface contanination, and old finish. Prine irredintely to prevent degrada tion. of the blasted surface. Prine DuPont fS2S-80Sl/vr-RSSP Corlar Epoxy Prirer at 1.5 to 2.0 nils dry film thickness. Aliev 4 hours dry to top coat by spray - 10 hours to top coat by brush or roll. Finish Apply one coat of DuPont *300 Line Inron Ui "b Build Enarcl of the color desired to obtain a dry filn thickness of 5.0 to 6.0 nils D.F.T. HER 0000232 page 7 PAINTING SYSTEM FOP. HI OH TEMPERATURE SERVICE 150F-800F SURFACE TEMPERATURE & V Surface Preparation Sandblast to ''White Vetal" as described by Steel Structures Painting Council SSPC-SP5-67. Requires removal of all mill scale, rust, dirt, grease, old paint, rust stains, gray oxide and other contamina tion. Prime immediately to prevent degradation of the blasted surface. Prime DuPont 347-D31 "Oanicin" Self-Cure Inorganic Zinc at 2.5 to 3.0 mils dry film thickness. Allow over night cure. Finish DuPont 612-706 Silicone High Temperature Aluminum at a dry film thickness of 0.6 to 0.8 nils. HER 0000233 page 8 PAINTINfT SYSTEM FOE GALVANIZED STEEL SIDING r' Surface Preparation GALVANIZED TfETAL - Surface must be clean and dry. Wipe surface clean with a suitable solvent to remove oil, grease and other contamination. Remove white deposit on weathered galvanized metal with soap and vrater then thoroughly rinse with clear water. New galvanized sheets are frequently coated at the mill to prevent "white rust." Consult the supplier re garding necessity for removal prior to painting. Prime PuPont 823-Line/VG-8339 Corlar Epoxy Enamel at 1.5 to 2.0 mils dry film thichness. Top coat within 72 hours using 81 line or 510 line. Finish Gloss - Apply two coats of DuPont Si line Dulux Gloss Enamel of the color indicated in the color schene to obtain 2.5 to .3.0 mils dry film thickness. Elat - Apply two coats of PuPont 310 line Lucitc Acrylic Latex Flat of the color indicated, in tho* color scheme to obtain a dry film thichness of 2.5 to 3.0 nils. HER 0000234 pape 9 PAINTING SYSTEM FOP TPANSITF SIP7NO C I Surface Preparation Water wash and hand clean to remove all dirt, prense, ore deposits, chalk or other contamination. Finish Apply two coats DuPont 33 0 line Lucite Acrylic Finish Flat of the color indicated in the color schcnc. HER 0000235 papc 10 PAIMTTNC SYSTEM FOR EXTERIOR WOP AND MASONRY SURFACES Surface Preparation Clear thoroughly to remove all crease, flirt, loose paint, chalk, mildew and other contamination. New masonry should he allowed to completely cure and dry before painting. Prime NET.' won Apply one coat of DuPont *51 Acrylic Latex Wood Primer. Allot.* 1 hour dry to recoat. NEW BLOCK Aprly one coat of DuPont 3J>P-26P Acrylic Plod: Filler at a spreadinr rate to obtain the decree of filling desired. OTHER SURFACES No primer. Finish ;s Apply one or more coats of DuPont "Lucite" 310 Line Acrylic Flat or "Lucite" 315 Line Acrylic Enamel of the color desired. Allow 2 hours dry between coats. HER 0000236 pape 11 l !' ZINC EPOXY PAINTING SYSTEM FOP CHEMICAL ENVIRONMENTS (EXCEPT STRONG ACID) (AMBIENT TO 200F SURFACE TEMPERATURE)_________ Surface Preparation Sandblast to "Near White wctal" as designated by Steel Structures Paintinp Council SSPC-SP10-63T. Requires the removal of all rust, mill scale, paint, oil, preasc and other contaminates to the pray oxide binder. Prime immediately to prevent degradation of the blasted surface. Pri me DuPont #3<17-P3I "Canicin" Self-Cure Inorranic Zinc at a dry film thickness or 2.5 to 3.0 mils. Allow ovemipht cure. Finish DuPont 823 Line/VF 510 "Corlar" Catali^ed Epoxy, Color selected to obtain a dry film thickness 5.0 mils. HER 0000237 page 12 IT- ZINC/VINYL PAINTINC SYSTEM FOR ACETIC CHPfICAL ENVIRONMENT fAMBIENT TO 150F SUREACE TE'^PERATPREl Surface Preparation Sandblast to "'tear White Metal" as designated by Steel Structures Painting Council SSPC-SP10-63T. Requires the removal of all rust, mill scale, paint, oil, grease, and other contaminates to the gray oxide binder. Prime immediately to prevent degradation of the blasted surface. Prime DuPont #347-931 "Canicin" Selr-Cure Inorganic Zinc at a dry film thickness of 2.5 to 3.5 mils. Allow over night cure. Einish Two coats DuPont 802-Line "Imlar" High Build Vinyl white, black, or gray to obtain a dry film thickness 6.0 mils minimum. HER 0000238