EUROPEAN COATINGS SHOW Nuremberg 8 – 10 May, 2007 EMADOX ® and AB RUST ® Corrosion Inhibitors...
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Transcript of EUROPEAN COATINGS SHOW Nuremberg 8 – 10 May, 2007 EMADOX ® and AB RUST ® Corrosion Inhibitors...
![Page 1: EUROPEAN COATINGS SHOW Nuremberg 8 – 10 May, 2007 EMADOX ® and AB RUST ® Corrosion Inhibitors for Waterbased formulations Laboratoires LABEMA ® Rue Denis.](https://reader031.fdocuments.in/reader031/viewer/2022013105/5517b8345503463e368b61da/html5/thumbnails/1.jpg)
EUROPEAN COATINGS SHOWNuremberg
8 – 10 May, 2007
EMADOX® and AB RUST®
Corrosion Inhibitors
for
Waterbased formulations
Laboratoires LABEMA®
Rue Denis Papin – 42420 LORETTE
FRANCEQAS Nr A1135FR
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PLAN
REMINDERS ON CORROSION
PROBLEMS ILLUSTRATIONS
EMADOX® and AB RUST® CORROSION INHIBITORS
- Characteristics- Ways of action- Effects- Uses
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GRADES USED IN WATERBASED COATINGS
- Presentation
- How to choose the good grade ?
STATE OF OUR KNOWLEDGE
REGULATIONS
- Sodium nitrite case
COMPETITORS
PLAN (continued)
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REMINDERS ON CORROSION
Corrosion = attack by oxidation of a metal
Aggressive agents : water, dissolved oxygen, acids, dissolved salts (chloride)
Electrical and chemical actions combined
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Why corrosion in water-based formulations?
METAL
WATER OXYGEN
CORROSIONCORROSION
During storage, application and drying stages
CanisterSubstrate orPart of the substrate
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REMINDER ON CORROSION
/////////////////////////////////////////////////
Fe2O3, 3H2O
Fe(OH)2
½ O2 + H2O
Fe
Fe2+ 2 OH-
2e-Anodic area Cathodic area
Example of iron :
Metal oxidation
Also concerned : Aluminium, Zinc, Copper6
O2
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Packing
Application
ManufacturingProblems Illustration
Film formation
Packaging damagedFormulation polluted
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Packing
Application
Manufacturing
Film formation
Concerns also packaging varnished in the inside
BottomWeld critical areasHandle fixations
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Problems Illustration
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Packing
Application
Manufacturing
Film formation
Properties deterioration : adhesion loss, permeability
increase
Aspect degradation
FLASH-RUSTFLASH-RUST
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Problems Illustration
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Packing
Application
Manufacturing
Film formation
FLASH-RUSTFLASH-RUST
Flash rust concerns also formulations devoted to other substrates than metal
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Problems Illustration
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EMADOX®, AB RUST® CORROSION INHIBITORS
Definition : a corrosion inhibitor is a substance which, Definition : a corrosion inhibitor is a substance which, when added when added in small concentrationin small concentration to an to an
environment, effectively reduces the corrosion rate environment, effectively reduces the corrosion rate of a metal exposed to that environment.of a metal exposed to that environment.
Typical use levels :Typical use levels : 0,2 to 3,0% of the total 0,2 to 3,0% of the total formulation weight formulation weight
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EMADOX®, AB RUST® General Characteristics
Ready to use aqueous solutions
Associations of different active corrosion inhibitors
REINFORCED EFFICIENCY due to synergies in ways the products operate
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EMADOX®, AB RUST® Way of action : adsorption
Creation of a chemical barrier at molecular scaleCreation of a chemical barrier at molecular scale13
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EMADOX®, AB RUST® Way of action : Reaction with oxidised metal
Reinforcement of the passivative layerReinforcement of the passivative layerPassivating inhibitors are considered Passivating inhibitors are considered
the most efficientthe most efficient 14
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EMADOX®, AB RUST® Way of action :
Basic pH control
Acid products neutralisation
Competitive reactions with aggressive agents
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EMADOX®, AB RUST®
Direct effects
Protective layerProtective layer between the metal and the medium
Electrical resistance increasedElectrical resistance increased corrosion rate reduced
Reinforcement of the passivative layerReinforcement of the passivative layer
Coating’s adhesion improvedadhesion improved
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Incorporation in the manufacturing process :
Mainly in POST-ADDITION
Also in the grinding stage
EMADOX®, AB RUST®
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EMADOX®, AB RUST® : Position compared with anticorrosive pigments
Storage Drying Coating’s durability
Packing Application
EMADOXEMADOX®®, AB RUST, AB RUST®® ANTICORROSIVE PIGMENTS
WaterWater solublesoluble Water insoluble
Immediate actionImmediate action extended diffusion
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EMADOX®, AB RUST® The range recommended • possible
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Application
EMADOX ® AB RUST®
NAN25
0D52
0101 102 A4 NFP FP AE MS
Water based anti-corrosive primers and
paints
•
Decorative water based paints and varnishes
See also diagram on next slide
Wood treatment coatings
•
Multi purposes primers
• • •
Tinplate packaging protection
NEW 2006
NEW 2006
NEW 2007
NEW 2007
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NOYES
IronSteelsIron
Steels
Iron,Steels and
Others: Aluminium
CopperZinc
Iron,Steels and
Others: Aluminium
CopperZinc
Acrylic or styrène acrylic
emulsion and
dispersion 2K Epoxy
PUréthanes
Acrylic or styrène acrylic
emulsion and
dispersion 2K Epoxy
PUréthanes
Alkyd emulsion
Alkyd emulsion
Acrylic or styrène acrylic
emulsion and
dispersion 2K Epoxy
PUréthanes
Acrylic or styrène acrylic
emulsion and
dispersion 2K Epoxy
PUréthanes
Alkyd emulsion
Alkyd emulsion
2- BINDER
EMADOX EMADOX N250N250
EMADOX NA
AB RUST A4
EMADOX EMADOX N250N250
EMADOX NA
AB RUST A4
AB RUST AB RUST NFPNFP
EMADOX D520
EMADOX 102
AB RUST FP
AB RUST AB RUST NFPNFP
EMADOX D520
EMADOX 102
AB RUST FP
AB RUST AB RUST NFPNFP
AB RUST AEEMADOX
101
AB RUST AB RUST NFPNFP
AB RUST AEEMADOX
101
AB RUST AB RUST MSMS
(if copper) EMADOX
D520EMADOX
102AB RUST FP
AB RUST AB RUST MSMS
(if copper) EMADOX
D520EMADOX
102AB RUST FP
AB RUST AB RUST NFPNFP
AB RUST AB RUST MSMS
(if copper)AB RUST AE
EMADOX 101
AB RUST AB RUST NFPNFP
AB RUST AB RUST MSMS
(if copper)AB RUST AE
EMADOX 101
Acid latexesAcid latexes Acid latexesAcid latexes
3- SODIUM NITRITE
EMADOX D520
EMADOX 102
AB RUST NFP
EMADOX D520
EMADOX 102
AB RUST NFP
AB RUST AB RUST MSMS
(if copper) EMADOX
D520EMADOX
102AB RUST
NFP
AB RUST AB RUST MSMS
(if copper) EMADOX
D520EMADOX
102AB RUST
NFP
1- METAL
EMADOX®, AB RUST® : How to recommend the good grade ?
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Water based anti-corrosive primers and paints
EMADOX NA tested in several guide formulations based on :- acrylic and styrene/acrylic emulsions : Acronal S760 (BASF), Neocryl XK-62 and XK-88 (NeoResins)- Acrylic dispersions : Enorex M1630AV- Vinyl acrylic latex : Haloflex 202 (NeoResins)- Vinyl Ester of Versatic Acid : Veocryl (Resolution Performance Products)
USE LEVELS : typically 0,3-0,4% on the total weight
SUBSTRATES : Iron and steel
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EMADOX NA - Experience on 2K-epoxy system : EMADOX NA added in the hardener1,0% on the total weight of the mix are needed to stop rust
Before After
Without NA0,5% NACleaned substrate
1,0% NARusty substrate
Water based anti-corrosive primers and paints
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EMADOX NA is concerned :
NOT LABELLED - WHY ?NOT LABELLED - WHY ?
EMADOX®, AB RUST®
Sodium nitrite caseReminder : concentrations leading to the labelling of the final product 0 1 Xn ; R22 5 T ; R25
LD50 evaluation made by an approved and independent laboratoryLD50>2000 mg/kg (rat)
EMADOX NA = PREPARATION NOT EMADOX NA = PREPARATION NOT CLASSIFIED AS DANGEROUS IF SWALLOWEDCLASSIFIED AS DANGEROUS IF SWALLOWED
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Concentrations leading to the labelling of the final product
EMADOX®, AB RUST®Sodium nitrite caseFrom the formulator point of viewFrom the formulator point of view
0 20 Xn ; R22 % EMADOX NA
/ tfw
0 30 3RECOMMENDED USE LEVELS % / tfwRECOMMENDED USE LEVELS % / tfw
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EMADOX N250 and AB RUST A4- Better stability of the additive at temperature below 0°C
EMADOX N250 does not freezedoes not freezeAB RUST A4 cristallization is reversible
- Possibility to replace EMADOX NA by improving the formulation cost
USE LEVELS : 0,3-1,0% on the total weight
SUBSTRATES : Iron and steel
Water based anti-corrosive primers and paints
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Water based anti-corrosive primers and paints
AB RUST NFP
NITRITE FREE PRODUCTSNITRITE FREE PRODUCTS
USE LEVELS : 0,5-1,0% on the total weight
SUBSTRATES : Iron and steelaluminiumzinc
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Water based decorative paints and varnishes
EMADOX D520, 101, 102 AB RUST NFP, FP, AE
NITRITE FREE PRODUCTSNITRITE FREE PRODUCTS
USE LEVELS : 0,5-2,0% on the total weight
SUBSTRATES : Iron and steelaluminiumzinc
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EMADOX 101AB RUST AENITRITE FREE PRODUCTSNITRITE FREE PRODUCTS showing compatibility with the binders based on alkyd emulsions
USE LEVELS : 0,5-2,0% on the total weight
SUBSTRATES : Iron and steelaluminiumzinc
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Water based decorative paints and varnishes
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AB RUST MS
NITRITE FREE PRODUCTSNITRITE FREE PRODUCTS with active material for copper and copper alloys protection
USE LEVELS : 0,5-1,0% on the total weight
SUBSTRATES : Copper Copper Iron and steel
aluminiumzinc 29
Multi purposes primers
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Tinplate packaging protection
EMADOX D520AB RUST AEacidic pHEMADOX D520
alcoholic mixtures, ketones AB RUST AE
USE LEVELS : 0,5-1,0% on the total weight
SUBSTRATES : Iron and tinplate boxes
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SUMMARY
HIGH EFFICIENCY REQUESTED and NITRITE ALLOWED EMADOX N250, EMADOX NA
HIGH EFFICIENCY AND NITRITE FREE REQUESTED AB RUST NFP
COMPATIBILITY WITH ALKYD EMULSION EMADOX 101, AB RUST AE
IN-CAN PROTECTION EMADOX D520, AB RUST AE
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EMADOX®, AB RUST®
Efficiency evaluation in paints
Method L-AF30 :drying period artificially extended in humid and corrosive saturated atmosphere
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COMPETITORS
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LABEMA HALOXSERVO DELDEN
BVASCOTEC
EMADOX NAAB RUST AT
HALOX FLASH X 150
SER-AD FA 179
ASCOTRAN SASCOTRAN H9
EMADOX 101EMADOX 102EMADOX 103AB RUST CM
EMADOX D520
EMADOX BBAEMADOX BBC
HALOX 510HALOX 515HALOX 520
HALOX 570 (ex IRGACOR 1405)HALOX FLASH X
350 (ex IRGACOR 252FC)
HALOX 650HALOX 415
SER-AD FA 379
SER-AD FA 579
ASCOTRAN +ASCOTRAN EASCOTRAN LASCOTRAN G
EMADOX NBHALOX FLASH X
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EMADOX®, AB RUST®
Laboratoires LABEMA thank Laboratoires LABEMA thank you very much for your you very much for your attention and remain at attention and remain at your disposal for your your disposal for your waterbased formulations waterbased formulations development.development.
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