What is MIL C 5541 class3?

Corrosion Protection
Class (Corrosion Protection) Class 3: Provides protection against corrosion where low electrical resistance is required. This is a thin coating providing low contact resistance, and the coating weight is lower as is the corrosion resistance. There may be some advantages using this thinner film in bonding applications.

What is MIL-DTL-5541 Type 2 Class 3?

2 Class 3. Class 3 chemical conversion coatings are intended for use as a corrosion preventive film for electrical and electronic applications where lower resistant contacts, relative to class 1A coatings, and anodic coatings in accordance with MIL-A-8625, are required (see 6.1.

Which is the Mil-c-5541 coating for aluminum?

TUTORIAL FOR NEWBIES: Chromate conversion coating on aluminum is most commonly specified to be in accord with MIL-C-5541 / MIL-DTL-5541. This process is also sometimes called “Chem Film”, especially in the USA.

What is the MIL-DTL-5541 chemical conversion coating?

MIL-DTL-5541 Chemical Conversion Coating Military specification MIL-DTL-5541 (Chemical Conversion Coatings on Aluminum and Aluminum Alloys) applies to chemical conversion coatings formed by the reaction of chemical conversion materials within the surfaces of aluminum and aluminum alloys.

Is the Mil-c-5541 Class 1A or Class 3?

Mine is similar. We have a part that requires MIL-DTL-5541 Class 1A and Class 3, Type 1 Clear in different locations on the part – the Class 3 is definitely for electrical conductivity where there are covers on our unit. Our normal outside process shop has to perform 2 masking steps in order meet this requirement.

What is military specification for chemical conversion coatings on aluminum?

The Military Specification referred to as MIL-DTL-5541, “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.