ChemFilm Coating Services
National Aerospace Processing offers NADCAP-accredited ChemFilm coating services that enhance the corrosion resistance and durability of aerospace components. Commonly referred to as chemical conversion coating, our ChemFilm metal finishing process protects components and provides an excellent base for paint. Our advanced processing systems, strict quality controls, and industry certifications at NAP ensure high-performance finishes that meet the rigorous demands of the aerospace and defense sectors.
Types of ChemFilm Coating
MIL-DTL-5541 Type 1 Class 1A & Class 3
We specialize in traditional chromate conversion coating using Alodine 1200S (hexavalent chromium), a trusted industry standard in chemical film for corrosion protection and reliability. This MIL-DTL-5541 Type 1 complaint process is commonly used for aluminum and aluminum alloys, offering superior resistance and paint adhesion.
Features & Benefits
- Corrosion Resistance: Provides long-lasting protection against harsh environmental conditions.
- Advanced Adhesion: Improves the bonding surface for subsequent paint layers.
- Versatile Applications: Adheres to standards for aerospace finishing, military components, and critical metal components.
MIL-DTL-5541 Type 2 Class 1A & Class 3
For environmentally conscious aerospace finishing applications, NAP provides RoHS-compliant chromate conversion coating using Chemeon eTCP (tri-valent chromium) chemical film coatings. This process provides high-performance corrosion resistance while meeting modern environmental standards that protect human health and enhance sustainability.
Features & Benefits
- Environmental Compliance: Meets RoHS requirements which restrict the presence of specific hazardous substances.
- Reliable Protection: Maintains excellent corrosion resistance and surface conductivity.
- Aerospace-Grade Quality: Ideal for aircraft finishing and sensitive electronic aerospace components.
AMS-2473
Our AMS-2473 compliant chromic acid anodizing services enhance corrosion resistance, maintain electrical conductivity, and improve paint adhesion on aluminum and its alloys. This specification outlines strict requirements to provide consistent, high-quality anodized finishes suitable for demanding aerospace and defense applications.
Features & Benefits
- Superior Corrosion Resistance: Offers strong protection in harsh environments.
- Thicker Anodized Coating: Provides enhanced durability for components in extreme conditions.
- Excellent Paint Adhesion: Provides an ideal base for paint and other aerospace finishing coatings.
General ChemFilm Process
At NAP, our ChemFilm process begins with meticulous surface preparation, including cleaning and degreasing to remove contaminants. Aerospace components then undergo chemical treatments in our 10-tank system, which includes DI water rinse sections, to ensure precise and efficient processing. Depending on the application, our experts either apply hexavalent or tri-valent chromium coatings, adhering to specifications like MIL-DTL-5541 and AMS-2473
Throughout the conversion coating process, we closely monitor chemical concentrations and immersion times to achieve optimal coating performance. Strict quality control measures are implemented throughout, with thorough inspections to verify coating thickness, adhesion, and corrosion resistance.
Choose NAP for ChemFilm Coating Services
When it comes to chemical conversion coating, National Aerospace Processing stands out for its industry expertise, rigorous quality control, and NADCAP certifications. Our NADCAP ChemFilm accreditation (AC7108/11) demonstrates our commitment to excellence in aerospace and defense applications.
With state-of-the-art facilities, a dedicated team of experts, and a proven track record, NAP delivers ChemFilm and other aircraft finishing services trusted by leading manufacturers like Collins, Safran, and Boeing to meet or exceed industry standards. Partner with NAP for reliable, high-quality ChemFilm coatings that ensure optimal performance and durability for your aerospace and defense components.
Time Is Money – Contact Us Today!
Contact our technical staff to learn how National Aerospace Processing can help you reduce lead times, streamline your processes, and deliver top-notch quality. Request a quote or reach out for more information today.