Touchnprep alodine pen implementation at boeing st. Technical process bulletin technical process bulletin no. Ps 204 has recently been revised, and is approved, to add the touchnprep alodine 12 pens as an option to apply conversion coating solution. Bonderite mcr 1201 known as alodine 1201 is a nonflammable, chromic. Milprf23377 class c2 over the waterreducible epoxy primer. The coating produced with alodine 1201 in accordance with the above directions, meets the requirements of military specification milc5541b for class no.
Bonderite mcr 600 aero powdered chemical used to produce a chromate conversion coating on aluminum and its alloys, which ranges in color from light, iridescent gold to tan. The touchnprep pens have the distinct advantage of a 24month shelf life over all other methods of applying conversion coating per ps 204. The military specification referred to as mildtl5541, military specification, chemical. Qqb626 finish alodine 1200 passivation to milc 5541 class 1 electrical dielectric withstanding. This chrome conversion coating offers the best affordable substrate for both paint adhesion and corrosion resistance. Chemfilm nadcap accredited chemfilm, sometimes called aluminum chromate, alodine or iridite, is a chemical conversion coating that is used to passivate aluminum.
The following material safety data sheets robinson helicopter. Iridite chromate conversion coating finish milc5541. Mildtl5541 type 1 contains hexavalent chromium, also known as hex chrome. Can be applied by immersion or spray method, does not contain complex cyanides, and is particularly recommended where a low dielectricresistance coating is desired.
Mila8625f anodic coatings, for aluminum and aluminum. The current specification 2009 is mildtl5541f, which superseded milc. Anodizing is the process of laying a metal in a solution of salts and running a current through it. Henkel industrial solutions surface treatment selector guide hisco. Chemfilm is applied by dipping, spraying or brushing. Mildtl5541 chemical conversion coatings on aluminum and aluminum alloys.
Alodine 1200 methods and properties are defined by milc5541f now amsc5541. Chemical film is a chemical process that produces a protective chromate conversion film on aluminum and aluminum alloys. Apply alodine without dilution by brushing or swabbing with sponge. Class 3 colorless, decorative, slight corrosion resistance, low electrical contact resistance class 4 light green to green, moderate corrosion resistance, used as a paint base and for bonding to rubber not done at ast electrical resistance class 3 coatings 3. Henkel bonderite mcr 1201 aero is a chromic acidbased, nonflammable coating chemical that provides an inseparable bond on metal surfaces. Brushon chemical to condition aluminum for a clear finish and corrosion resistance. Alodine 1200 methods and properties are defined by milc5541f now amsc5541 and amsa2473. Coatings shall be continuous free from powdery areas, breaks.
This process increases surface hardness, paint adhesion, and corrosion resistance. The coating formed by alodine 1201 is gold to tan in color and it becomes a part of the aluminum surface. Chem film chromate conversion coatings electrolurgy. Milc5541 chromate conversion coating, milprf85582 c primer, and milprf. Class 3 for protection against corrosion where low electrical resistance is required. Eap12, milc5541, or chromic acid anodized pretreatments. Hexavalent chromate produces the gold color associated with gold alodine. Milc5541, class i a, 3 mildtl5541 type i, ii class ia, 3 ams 2473 type i, class ia coating yellow in appearance maximum corrosion resistance type i, class 3 coating clear or yellow in appearance type ii, class 3 coating clear rohs compliant conductive coating excellent base or primer for painting.
Bonderite mcr 1201 aero known as alodine 1201 is a nonflammable, chromic acid based, coating chemical that will produce a chrome conversion coating on aluminum and its alloys. Chem film, sometimes called alodine or iridite, is a chemical conversion coating that is used to essentially passivate aluminum. Alodine 1600 alodine 1660 additive alodine 22 toner nitric acid, dilute sodium hydroxide, dilute testing reagents and apparatus 5. Electrical contact resistance testing shall be as specified in the contract. Mildtl5541 chemical conversion coatings on aluminum.
A discussion started in 2004 but continuing through 2017. Alodine 1200 methods and properties are defined by milc5541f now amsc 5541. Sponsored links speed downloads mil c 5541 trusted download 1500 kbs 10 310 mil c 5541 highspeed download 1200 kbs 5 945 mil c 5541 full download kbs 1 290 68 p misc accy mila8625, type ii, class 2. Chemical film coatings are gelatinous films which provide some sort of a barrier medium to retard corrosion on aluminum surfaces and enhance adhesion of subsequent coatings such as paints and primers. Other alodine chemicals are available to meet other application methods and classes of. Bonderite mcr 1201 aero formerly alodine 1201 after precleaning with bonderite cic 33 aero, rinse with water.
Trivalent chromate, however, is only offered in clear. It protects aluminum substrates from corrosion and serves as a base for organic coatings while leaving dimensions unchanged. Henkel alodine 1200s conversion coating mildtl81706. Henkel alodine 1201 chromate conversion coating chemical. Alodine as per mil c 5541 link is to free spec at defense logistics agency, dla. It is designed not only to protect against corrosion, but also to reduce.
A spec or slash sheet identifies a specific piece or section of a general specification or standard. The best results are achieved on wrought alloys machined billet aluminum alloys. What is alodine chem film chromate conversion coating. Product selector guide for the aerospace industry krayden. This product is listed on qpl81706 as certified for class 3. Treating with the alodine 1600 processing solution f. Mil c 5541 link is to free spec at defense logistics agency, dla. Bonderite mcr 1200 coating chemical, being listed on the qualified product list qpl for mildtl81706, is an approved material to be used by method c immersion processing to produce class 1a and 3 coatings, bare or unpainted, in accordance with military specification milc5541 b.
Alodine as per milc5541 link is to free spec at defense logistics agency, dla. Bonderite mcr 1201 aero known as alodine 1201 is approved to mildtl81706 for brush application only. At the end of 168 hours of exposure to the 5 percent salt spray test specified in 4. This is created through the chemical conversion substance reaction with aluminum and its alloys.
Aluminum chromate conversion coatings, often referred to as chemical film or under the trade names alodine or irridite, produce a thin coating in the range of 0. An nsn, although displayed or written as a continuous string of digits, consists of two separate components the fsc and niin. Good results can also be achieved on type 356 aluminum castings. This coating hardens to the surface and can last for years if painted, not requiring reapplication. Aluminum chromate conversion coatings are amorphous in structure with a gel. Adjustments and titrations are not needed or required. Add 30 to 250 kg of alodine 5992 mu for each litres of working volume. Alodine 1201 is a nonflammable, chromic acid based, coating chemical that will produce a chrome conversion coating on aluminum and its alloys. Class 1a and class 3 coatings in accordance with military specifications mildtl5541 type ii coatings. A national stock number nsn is a thirteen digit number uniquely identifying a single government part designation. The military specification referred to as mildtl5541, military specification, chemical conversion coatings on aluminum and aluminum alloys covers chemical conversion coatings formed by the reaction of chemical conversion materials with the surfaces of aluminum and aluminum alloys. Color can vary from colorless to golden iridescent brown. Delete milc81706 chemical conversion materials for coating aluminum and aluminum alloys.
The process to prepare metal for painting normally consists of. Henkel alodine t5900 tcp has been selected as the pretreatment for the processing. Conversion coatings are also used to prepare surfaces for other coatings like paint. Mildtl5541 is a military specification related to conversion coatings. Provides protection against corrosion where low electrical resistance is required. Alodine 1201 is a nonflammable, chromicacidbased, coating chemical. Anodic coatings for aluminum and aluminum alloys this amendment forms a part of mila8625f, dated 10 september 1993, and is approved for use by all departments and agencies of the department of defense.
Our hexavalent chemical films are offered in both clear and gold color. Bonderite mcr 1201 aero known as alodine 1201 is used as received for mildtl5541 work. This class of conversion coating has two objectives. Mildtl5541f chemical conversion coatings on aluminum and. Conversion coatings are applied to metal through chemical or electrochemical conversion. Aluminum chromate conversion coatings aluminum chromate conversion coatings properties. Alodine conversion coatings for light metals, such as aluminum, magnesium and. Henkel bonderite aero chromate coating mcr 1201 skygeek. Add sufficient water to bring the solution up to the working level, mix thoroughly and determine the chrome pointage of the solution. Iridite milc5541 mildtl5541 class 3 ams2474 astm b449 class 3 7. Aluminum chromate conversion coating advanced plating. Alodine henkel touchnprep coating your worldwide partner.
Alodine 1201 is a nonflammable, chromic acid based, coating chemical that. All the other replies notwithstanding, i just got off the phone with henkel aerospace technical help as i had a drawing requirement of coating to the milc5541 link is to free spec at defense logistics agency, dla. It protects aluminum from corrosion and serves as a base for organic paint coatings while leaving the part dimensions unchanged. Chem corrosion resistant coating part number m6902781 nsn 8030008238039. Almost everything you need in one convenient package. Although mildtl5541 has been superseded by more recent specifications, it still remains a specification approved by all agencies and departments in the us department of. The chemistry difference between the two is that the 600 has some complex cyanides in it that. Alodining is a process in which a metal is coated with a chemical called alodine. Henkel alodine 600 powder form conversion coating 10 lb can 598459 known as alodine 600 light metals conversion coating bonderite mcr 600 aero powdered chemical used to produce a chromate conversion coating on aluminum and its alloys, which ranges in color from light, iridescent gold to tan. Protect your aircraft henkel bonderite mcr 1201 aero chromate coating also known as henkel alodine 1201 light metals conversion coating from skygeek. Bonderite mcr 1201 aero known as alodine 1201 page 3 of 6 7. This was formerly known as milc5541 and is another of our alltime bestselling plating specs.