guide to rust preventives
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King Industries Lubricant Additives Division
GUIDE TO RUST PREVENTIVESNA-SUL® and K-CORR® Rust & Corrosion Inhibitors
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KING GUIDE TO RUST PREVENTIVES
The tremendous cost to society due to rustand corrosion of metals has in the past andcontinues today to energize research intobetter corrosion preventives. King Industrieshas been a leader in new technologies de-signed to preserve metals for over a half of acentury. This product guide has been de-signed to keep you informed of some thelatest technologies available from King whileproviding useful information about NA-SUL®
rust and corrosion inhibitors, long recognizedas the performance standard for unexcelledprotection.
For over six decades King Industries’sNA-SUL dinonynaphthalenesulfonates havebeen used in hundreds of formulations be-cause of their unique abilities as hydrophobicpolar compounds to prevent rust and corro-sion. Unlike, other sulfonates, NA-SUL prod-ucts are high molecular weight syntheticswith a narrow molecular weight distributionthat results in:
• Extremely hydrophobic coatings
• Coatings that resist reemulsification re-pelling water for long time periods
• Batch to batch consistency with highquality predictable performance
Additionally, as markets needs have changedand the quest for more environmentally andhealth friendly additives has become preva-lent, King has kept pace with those trends by:
• Developing a unique line of rust preven-tive additives for aqueous systems
• Developed additives specifically designedto be used with vegetable based oils
• Developed a 100% ashless non-sulfonate
corrosion inhibitor that is>90% biodegradable
Perhaps, just as important as the product ad-vances in rust preventive technology is acompany’s commitment to provide the techni-cal service and expertise to support thoseproducts. That is why King maintains a stateof the art, RP technical service lab that in ad-dition to expected North American test equip-
ment has unexpected equipment such as aKesternich Cabinet to fulfill different test re-quirements from different parts of the world.
Likewise, King technical personnel are readyto assist you in anyway they can with yourformulation needs and can be contacted at:
P
Metal Surface
O2
O2 O2H2O
H2O
H2O
P P P P P
P P P P P P P
P
H2O
Lubricant Lubricant
Hydrophobic Barrier Layer
Metal Surface
King Industries, Inc.(USA - World Headquarters)Science RoadNorwalk, CT 06852203-866-5551 203-866-0425
lad@kingindustries.com
King Industries International, Inc.(European Technical Sales Office)Noordkade 642741 EZ WaddinxveenThe Netherlands+31 182-631360+31 182-621002info@kingintl.nl
Over the years, using this core technology,King has developed numerous special pur-pose products by combining other hydro-phobic polar compounds creating anti-rustsynergy.
Technical Assistance
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Rust and Corrosion Preventive Additives
King Industries NA-SUL® rust preventive additives are based on salts of dinonylnaphthalenesulfonate(DNNS®) with additional polar compounds chosen to provide rust preventive synergy. This results inextremely hydrophobic rust preventive coatings that effectively exclude water and air from reachingthe metal surface. The resulting performance advantage allows levels of metal protection thatcompetitive additives cannot achieve and /or reductions in additive use level that result in significantformulation savings. In addition, King Industries offers a line of specialty rust and corrosion inhibitorsbased on non-sulfonate chemistry under the K-CORR® brand.
NA-SUL Rust Preventives Concentrates for Oil and Oil/Solvent Systems
Product Form Composition of Active Ingredients Page
BSN Liquid Barium DNNS 3
729 Liquid Calcium DNNS 3
CA-1082 Liquid Calcium DNNS/carboxylic acid 3
CA-1089 Liquid Calcium DNNS/calcium carboxylate 3
CA-1183 Liquid Calcium DNNS/Calcium carboxylate 3
CA-1259 Liquid Calcium DNNS/carboxylate/minor oxidized waxcomponent in light Naphthenic oil
5
CA-HT3 Liquid Calcium DNNS/calcium carboxylate 4
CA/W1177 Viscous Liquid Calcium DNNS/carboxylate/oxidized petrolatum 4
CA/W1213 Viscous Liquid Calcium DNNS/carboxylate/oxidized petrolatum/oil 4
CA/W1745 mp~40ºC Calcium DNNS/oxidized petrolatum 4
CA/W1935 mp~40ºC Calcium DNNS/carboxylate/oxidized petrolatum 4
CA/W1146 Viscous Liquid Calcium DNNS/carboxylic acid/oxidized petrolatum 4
New Development Product for Aluminum Protection in Oil or Water
KX1101 Liquid Ammonium DNNS/carboxylate 5
K-CORR Rust and Corrosion Inhibitors for Oil and Oil/Solvent Systems
K-CORR 100 Liquid Amino Acid Derivative 5
K-CORR NF-200 Liquid Proprietary Yellow Metal Deactivator 5
NA-SUL Rust Preventive Additives for Aqueous Systems
Product Solubility Composition of Active Ingredients Page
437 Solution DNNS/alkanolamines/carboxylates 6
1019A Solution DNNS/alkanolamines/carboxylates 6
420 Emulsion Sodium DNNS/alkanolamines/oxidized petrolatum 6
Experimental Rust Preventives for Aqueous Systems
KX1028 Emulsion Sodium DNNS/Sodium carboxylate/oxidized petrolatum 6
KX1109 Solution DNNS/alkanolamines/carboxylates/YMD* 6
KX450 Emulsion Calcium DNNS/Calcium Carboxylate 6
Additives for Oil and Oil/Solvent Systems
Additives for Aqueous Systems
*Yellow Metal Deactivator
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Neutral Barium dinonylnaphthalenesulfonate,50% active in light naphthenic oil.
Used for moderate indoor or sheltered outdoor storage of steel pieces. NA-SUL
BSN is particularly useful for stacked or coiled steel because of superiornon-staining properties. It is well suited for dewatering fluids because of inherentwater displacing properties and no tendency to gel from water contamination.
NA-SUL BSN
NA-SUL 729 Neutral Calcium dinonylnaphthalenesulfonate,50% active in light naphthenic oil.
Used for moderate indoor or short term outdoor sheltered storage of steel pieces.NA-SUL 729 is well suited for general purpose rust preventives as well asdewatering fluids. It is chemically neutral, which makes NA-SUL 729 a goodchoice where water or alkaline contamination is likely. Known or likelycontaminants should always be checked for compatibility with any additive system.
NA-SUL
CA-1082
A 67% active complex of Calcium DNNS/carboxylatein light naphthenic oil.
The synergy of polar materials used in NA-SUL CA-1082 allows for long termmetal protection in indoor or outdoor sheltered storage. It has excellent solubilityin most conventional diluents, but rust preventive performance is best innaphthenic or Group I paraffinic oils. It does not contain oxidized petrolatum,which improves solubility and reduces odor. NA-SUL CA-1082 does not gel oncontamination with water, but can gel if contaminated with highly basic materialssuch as caustic cleaners. For this reason it is not generally used in dewateringfluid applications. NA-SUL CA-1082 is easy to emulsify due to its acid value sothat it may be used in water-based rust preventives or as a rust preventive boosterfor metalworking fluids.
Moderate Storage
Indoor/Sheltered OutdoorStacked/Coiled SteelNon-stainingWater Displacement
General PurposeShort TermDewatering fluids
Long Term StorageIndoor/Sheltered OutdoorSoluble Oil TypeMetalworking Fluids
NA-SUL
CA-1089
A 50% active complex of calcium DNNSand calcium carboxylates in light naphthenic oil
Excellent for general purpose long term indoor storage or short term outdoorsheltered storage of steel pieces. NA-SUL CA-1089 is highly recommended fordewatering fluid applications showing no tendency to gel after exposure to water oralkaline contaminants. NA-SUL CA-1089 exhibits remarkable non-staining per-formance and is highly recommended for coiled steel or stacked parts. Known orlikely contaminants should always be checked for compatibility with any additivesystem.
General PurposeLong Term IndoorDewatering FluidsNon-staining
NA-SUL®
Rust Preventive Concentrates for Oil and Oil/Solvent Systems
NA-SUL
CA-1183 Long term storageIndoor/Sheltered OutdoorGood salt fogExcellent humidityDewatering fluidsTolerates alkalinecontamination
A complex of calcium DNNS and calcium carboxylate in light naphthenic oil
NA-SUL CA-1183 is a very effective rust preventive that does not contain oxidizedpetrolatum. This results in excellent solubility in a wide variety of base fluids suchas highly refined mineral oils, polyalphaolefins and vegetable oils. The lack ofoxidized petrolatum also results in a very mild odor. NA-SUL CA-1183 is highlyrecommended for applications such as dewatering fluids where watercontamination is likely. It has very good salt fog performance and outstandinghumidity performance. It is recommended for moderate to long term indoor andsheltered outdoor storage applications.
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Proven Performance
Calcium DNNS in oxidized petrolatum
NA-SUL CA/W1745 is a good general purpose rust preventive for medium dutyapplications. It does not have a tendency to gel on exposure to water. It isparticularly well suited for oil/solvent formulations. NA-SUL CA/W1745 is 100%active, containing no mineral oil.
NA-SUL
CA/W1745 General purpose
Dewatering fluids
Calcium DNNS/carboxylate in oxidized petrolatum
NA-SUL CA/W1935 is a good general purpose rust preventive for medium to longterm storage of metal parts in indoor or sheltered outdoor environments. It is bestused in oil/solvent systems. If used in oil without solvent, solubility must beverified. It is recommended for acid atmosphere applications. NA-SUL CA/W1935is 100% active, containing no mineral oil.
NA-SUL
CA/W1935 Medium/Long term
storageAcid atmosphere
Calcium DNNS, oxidized petrolatum and carboxylic acidin light naphthenic oil
NA-SUL CA/W1146 is highly recommended for severe rust preventive require-ments. It is especially recommended for marine applications and protection ofmetal parts during overseas transportation. It is also very effective in acidatmosphere applications. It has improved solubility over other wax containingproducts. It will form a gel if the formulation is contaminated with water prior toapplication to parts. Once applied to metal parts, it forms a very hydrophobicprotective coating. NA-SUL CA/W1146 is very effective at low levels so that it cansignificantly save on total formulation costs.
NA-SUL
CA/W1146 Severe conditions
Marine applicationsAcid atmosphere
Low use levels
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NA-SUL
CA/W1177 Dewatering fluids
Humid environments
Calcium DNNS/carboxylate, oxidized petrolatum in light naphthenic oil
NA-SUL CA/W1177 is highly recommended for dewatering fluids or other applica-tions where water contamination is likely. It offers good salt fog and excellent hu-midity protection. NA-SUL CA/W1177 is highly effective in indoor storage in highhumidity environments as well as in outdoor sheltered storage. It can be used atlow treat levels for cost effective total formulations as compared to competitiveproducts
Calcium DNNS/carboxylate, oxidized petrolatum in light naphthenic oil
NA-SUL CA/W1213 is designed to provide excellent protection in harsh environ-ments such as salt fog with outstanding humidity protection. It provides improvedsolubility in Paraffinic oils compared to other wax containing additives. NA-SULCA/W1213 shows no tendency to gel when exposed to water and so can be usedin a wide range of environmental conditions.
NA-SUL
CA/W1213 Severe conditions
Marine applicationsLong term storage
Tolerant of watercontamination
Calcium DNNS/carboxylate, minor oxidized wax component in lightnaphthenic oil
NA-SUL CA-1259 has excellent solubility in a wide range of fluids, providing excel-lent performance in mineral or vegetable oil based diluents. Solutions of NA-SULCA-1259 separate water well and can be used where water contamination is likely.
A low level of wax gives low viscosity allowing cold blending in many cases whileproviding excellent parts protection. NA-SUL CA-1259 provides exceptional saltfog protection at low treat levels.
NA-SUL
CA-1259 Mineral or Vegetable oil
based fluidsLow viscosity for cold
blendingWater tolerant, water
displacing
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A complex of ammonium DNNS and carboxylates in light naphthenic oil
KX1101 provides exceptional protection for aluminum. It is soluble in a wide vari-ety of diluents including mineral oils, polyalphaolefin and vegetable oils. It caneasily be emulsified by combining with suitable alkanolamines. Water emulsionscan be made stable at pH levels near 8. This allows KX1101 to be used to protectaluminum without blackening due to high pH.
KX 1101 Aluminum protectionOil or water systems
NEW Development Product for Aluminum Protection in Oil or WaterSystems
A 100% active ashless corrosion inhibitor based on amino acid chemistry
K-CORR 100 has an acid value of about 100 and can be used as is or as a rustinhibitor intermediate. It has good thermal and hydrolytic stability along with goodwater separation. It can be used in oil and with suitable amines or alkanolaminesin aqueous systems. It has biodegradability of greater than 90% in theCEC-L-33-A-93 test and over 50% by OECD 301B (modified Sturm) test.
K-CORR 100
AshlessBiodegradable
A 100% active ashless yellow metal deactivator
K-CORR NF-200 is a high performance liquid yellow metal deactivator that
protects copper and copper alloys from oxidation by forming a protective film onthe metal surface. It functions at low treat levels, usually 0.03% to 0.07% byweight depending on the formulation. It has excellent solubility in most mineral oilsand synthetic base fluids. K-CORR NF-200 is an excellent additive to extend aformulation that is effective on steel to multi-metal corrosion inhibition.K-CORR NF-200 is also effective in greatly reducing or completely eliminatingcorrosion of cadmium and zinc.
K-CORR
NF-200 Yellow Metal DeactivatorHigh performance liquid
K-CORR® Products for Oil and Oil/Solvent Systems
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Calcium DNNS/carboxylate in light naphthenic oil
NA-SUL CA-HT3 is a very good general purpose rust preventive additive formedium term indoor or outdoor sheltered applications. It has excellent solubility ina wide range of oils and diluents. It is not recommended as a dewatering fluidadditive because it has a slight tendency to form a gel on heavy contamination withwater.
NA-SUL
CA-HT3 General purpose
Excellent solubility
Proven Performance
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NA-SUL®
Rust Preventive Concentrates for Aqueous Systems
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A water soluble rust preventive based on triethanolamine DNNS, carboxylicacid and alkanolamines
NA-SUL 437 is a water soluble rust preventive especially recommended for shortto medium term indoor storage of steel parts. Recommended treat levels are 1% to
5%. It is very tolerant of hard water. At 3% or less, it produces dry to the touchcoatings. It is also recommended for internal aerosol can protection by incorpora-tion into water or alcohol based formulations at 0.25% to 1.0%. NA-SUL 437 willproduce coatings that provide extended protection even in 100% humidity environ-ments.
A water emulsifiable rust preventive based on sodium DNNS, emulsifiers,alkanolamines and waxes
NA-SUL 420 easily forms emulsions by pouring into water with moderate mixing. Itis recommended for short to long term indoor storage. The usual treat levels are1% to 10% depending on the severity of the requirement. Up to 20% can be usedto get moderate salt fog performance. At treat levels below 3%, the resultingprotective films are dry to the touch. If NA-SUL 420 emulsions are spray applied,antifoam may be required.
Modified version of NA-SUL 437
NA-SUL 1019A is similar to NA-SUL 437 with slightly enhanced iron chip testperformance. It is recommended where the aqueous fluid is in contact with thesurface to be protected such as in circulating fluid systems.
NA-SUL 437Water soluble
Dewatering
Aerosol can protection
NA-SUL 420Emulsifiable withmoderate mixing
Moderate indoor storage
NA-SUL 1019ACirculating fluids
NEW
New Development Rust Preventive Concentrates for Aqueous Sys-A water emulsifiable rust preventive based on sodium DNNS, emulsifiers andwaxes
KX1028 is the same composition as NA-SUL 420 but is neutralized with sodiumrather than alkanolamines. This results in no appreciable VOC emissions. It canbe used in heated tanks without losing volatile components and destabilizing theemulsion. When applied at temperatures in excess of 60ºC,outstanding salt fogresistance is obtained.
KX 1028
Water emulsifiableVery low VOC
High temperatureapplications
Modified version of NA-SUL 437
A water soluble corrosion inhibitor that adds yellow metal deactivation to thechemistry of NA-SUL 437 for multi-metal protection.
KX 1109Water soluble
Yellow metal deactivator
KX 450Water emulsifiable
Medium to long termindoor storage
Low foamContains no mineral oil
A water emulsifiable rust preventive based on calcium DNNS, calcium car-boxylate and alkanolamine in a biodegradable ester
Emulsions from KX450 are easily formed by pouring into water with moderate stir-ring. KX450 gives excellent Humidity Cabinet protection at treat levels as low as2%. It is highly recommended for medium to long term indoor storage of steelparts. Coatings produced from 5% or lower treat levels are dry to the touch. Coat-ings are detergent removable. Higher treat levels give moderate salt fog protec-tion. KX450 is low foaming and does not contain mineral oil.
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Selection Guide for Common Rust Preventive Applications
Many NA-SUL® and King Experimental (KX) additives can be used for various rust and corrosion prevention
applications. The following guide is to help select the best possible additive for some of the more common RPapplications but is by no means all inclusive. As always, King’s technical staff is ready to assist you with yourspecific requirements and can be contacted as shown on the last page.
Indoor storage conditions range from controlled climates to wide seasonal fluctuations intemperature and humidity. The duration of protection required can range from days toyears. The thin protective coatings are generally, but not always, removed prior to use orfurther processing.
Indoor Temporary Storage
5%10%85%
NA-SUL CA-1089Group I - ISO VG 32 Paraffinic OilSolvent
Sample - Oil/Solvent Formulation
3%97%
NA-SUL 437City (tap) Water
Sample - Aqueous Formulation
Products Notes
NA-SUL CA-1089
Medium term storage, tolerant ofwater and alkaline contaminationRemarkable non-staining perform-ance
NA-SUL CA-1259Medium to long term storage, tolerantof water and alkalinic contamination
NA-SUL CA-1183Medium to long term storage, tolerantof water and alkaline contamination
Oil and Oil/Solvent Systems
Products Notes
NA-SUL 437Water soluble, thin film dry to touch atless than 3%
NA-SUL 420Medium term storage, easy to formemulsion, dries quickly, dry to touch atless than 3%
KX450Medium to long term storage. Dry to thetouch at less than 5%. Low foam. Con-tains no mineral oil.
Aqueous Systems
Special Conditions
StackedSteel Parts
NA-SUL BSN or NA-SUL CA-1089
HighHumidity
NA-SUL CA-1089
Vegetable OilBased
NA-SUL CA-1259
Special Conditions
StackingWet Parts
NA-SUL 1019A
Heated WaterApplications
KX1028
Lowest VOC KX1028
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Parts Transportation and Marine Environments
Parts being transported can be exposed to many different environments before they reach theirdestination. They may go from a cold dry environment to a warm humid one or the reverse. They
may also be exposed to marine environments requiring salt resistance.
Products Notes
NA-SUL CA/W1146Best salt fog resistance. Avoidwater contamination before applyingto parts.
NA-SUL CA/W1213Excellent salt fog resistance. Toler-ant of water contamination.
NA-SUL CA-1259Tolerant of water contamination.Compatible with mineral or vegeta-ble oils.
Oil and Oil/Solvent Systems Aqueous Systems
Products Notes
KX1028Excellent salt fog resistance especially ifapplied from heated emulsion system,very low VOC.
Special Conditions
Water ContaminationLikely Group II or III or PAOBase Oil
NA-SUL CA-1259 or CA/W1213
NA-SUL CA-1183
Special Conditions
Lowest VOC KX1028
5 to 10%10%
80 to 85%
NA-SUL CA/W1146Group I - ISO VG 32 Paraffinic OilSolvent
Sample - Oil/Solvent Formulation
10 to 20%80 to 90%
KX1028City (tap) Water
(For maximum salt fog results, apply byspraying or dipping from emulsion heatedabove 55˚C).
Sample - Aqueous Formulation
5%95%
or
NA-SUL CA-1089Solvent10% Oil/ 85% Solvent for increasedprotection in severe environments
Sample - Oil and Oil/Solvent Formulation
3%97%
NA-SUL 437City (tap) Water
Sample - Aqueous Formulation
Special Conditions
StackingWet Parts
NA-SUL 1019A
Yellow MetalProtection
KX1109
Special Conditions
Galvanized SteelBarium–freeClean WaterSeparation
NA-SUL CA-1183
Products Notes
NA-SUL CA-1089 Medium term protection
NA-SUL BSN Superior water displacement
NA-SUL CA-1259 Medium to long term protection
Oil and Oil/Solvent Systems Aqueous Systems
Products Notes
NA-SUL 437 Water soluble
NA-SUL 1019A Water soluble
KX450 Water emulsifiable
Dewatering Fluids
Dewatering fluids displace water from wet parts to apply a rust preventive coating.
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Products Notes
NA-SUL CA/W1177Tolerant of water contamination.Use naphthenic, Group I paraffinicoils or oil-solvent systems.
NA-SUL CA-1183Tolerant of water or alkalinecontamination, excellent solubility.
NA-SUL CA-1259Tolerant of water or alkalinecontamination, excellent solubility,use in mineral or vegetable oils.
Oil and Oil/Solvent Systems
Special Conditions
GalvanizedSteel
NA-SUL CA-1183
Aluminum KX1101 or NA-SUL CA-1183
5 to 10%10 to 20%70 to 85%
NA-SUL CA/W1177Group I - ISO VG 32 Paraffinic OilSolvent
Sample - Oil/Solvent Formulation
Outdoor Sheltered Storage
Conditions for outdoor sheltered storage are extremely varied both seasonally andregionally. The most common factor is alternating dry and wet conditions due tocondensation, rain or humidity changes.
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Contact - Technical Assistance
We can offer significant individualized assistance for optimizing your formulation using our extensive experienceand wide range of testing capabilities. Our customers find this service increasingly important because of rapidlychanging base fluids, various worldwide governmental regulations and lack of in-house laboratory time andpersonnel.
Please contact us as shown below:
The conditions of your use and application of our products, technical assistance and information (whether verbal, written or by way of product evaluations),including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products, technical assistanceand information to determine to your own satisfaction whether they are suitable for your intended uses and applications. Such testing has not necessarily beendone by King Industries, Inc. (“King”). The facts, recommendations and suggestions herein stated are believed to be reliable; however, no guaranty or warrantyof their accuracy is made. EXCEPT AS STATED, THERE ARE NO WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS OROTHERWISE. KING SHALL NOT BE HELD LIABLE FOR SPECIAL, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES. Any statementinconsistent herewith is not authorized and shall not bind King. Nothing herein shall be construed as a recommendation to use any product(s) in conflict withpatents covering any material or its use. No license is implied or granted under the claims of any patent. Sales or use of all products are pursuant to StandardTerms and Conditions stated in King sales documents.
April 28, 2011
Visit Us At: www.kingindustries.com
USA/Headquarters :King Industries, Inc., Science Road, Norwalk, CT 06852
(203) 866-5551 lad@kingindustries.com
Europe Technical Sales OfficeKing International, Noordkade 64, 2741 EZ Waddinxveen, The Netherlands
+31-182-631360 info@kingintl.nl
Asia - Pacific Rim Technical SupportDr. Zhiqiang Alex He, 42 JLYY - Rich Mond Hill, Bo Ai 7th Road,
Zhongshan, Guangdong, China 528403 +760-88229866 alex.he@kingindustries.com
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LAD-RP-04/11
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