Chem Film Coatings

Chemical film is a chromate conversion coating that can be applied to aluminum parts to enhance corrosion protection while maintaining conductivity. This process is also useful for improving adhesion for future paints and primers. We offer both clear and golden finishes, with the clear finish providing minimal electrical resistance, while the golden finish offers thicker corrosion protection and paint adhesion.

Our chemical film (alodine/irridite) services comply with MIL-C-5541 and MIL-DTL-5541 standards, and we offer two classes of coating. Class 1A is used as a corrosion-preventative film (unpainted) or to prove adhesion of paint finish systems, while Class 3 is used as a corrosion-preventative film for electrical and electronic applications where low-resistance contacts are required.

Chem film coatings can be applied to most alloys of aluminum, making it a versatile solution for your metal finishing needs. Additionally, our typical chemical film coating provides roughly 168 hours of salt spray per ASTM B 117.

• Class 1A: is used as a corrosion preventative film (unpainted) or to prove adhesion of paint finish systems.
• Class 3: is used as a corrosion preventative film for electrical and electronic applications where low-resistance contacts are required.