Reducing Lead Times with Quick-Turn MIL-DTL-5541 Conversion Coating Aircraft programs run on tight schedules, and even a single delay at the finishing stage can hinder the entire build. For Tier 1 and 2 OEMs, getting aluminum parts back from a coating supplier is a recurring source of risk. Quick-turn MIL-DTL-5541 conversion coating reduces that risk by combining fast processing with the dependable corrosion protection, paint adhesion, and conductivity that aerospace parts require. At National Aerospace Processing (NAP), we treat lead time as a deliverable. Our Nadcap-accredited line is built to move qualified aluminum components through the ChemFilm process without sacrificing quality [...]

Choosing the Right Aerospace Finishing Process Selecting the correct aerospace finishing process directly impacts your bottom line and the lifespan of your parts. High-quality finishing extends service life, keeps components in spec, and protects your budget over the long term. At National Aerospace Processing (NAP), we work with Tier 1 and Tier 2 OEM manufacturers to match finishing processes to program requirements. This guide breaks down the most common aerospace finishing options, their cost-performance tradeoffs, and how to align your selection with production goals. Why Finishing Choices Matter in Aerospace Manufacturing More than just a surface treatment, aerospace finishing is a [...]

Ensuring Compliance and Quality with Aerospace Certifications Unlike accreditations in some other industries, aerospace certifications are absolutely vital. If an aerospace manufacturer has the right certifications, including Nadcap® and AS9100, it can be trusted to deliver performance-ready results for mission-critical applications. Certifications also help manufacturers meet compliance and regulatory requirements. Aerospace certifications are more than pieces of paper. But to fully understand the importance of holding key certifications, we need to look at why they exist and what they actually do. Understanding Aerospace Standards and Certifications for Surface Treatments Because aerospace is such a demanding industry, it’s highly regulated to ensure [...]

Cost vs. Performance: A Guide to Maximize Your ROI in Aerospace Surface Finishing Applications Aircraft manufacturers face constant pressure to balance performance, compliance, and cost. In an industry where every gram and micron matters, selecting the right aerospace finishing process can have a measurable impact on quality, reliability, and profitability. At National Aerospace Processing (NAP), we help Tier 1 and 2 aerospace OEMs optimize total cost of ownership without compromising performance or schedule through advanced metal finishing services that support the full range of aerospace surface finishing applications.  Below, we’ve outlined key factors that influence ROI in aerospace treatments and how [...]

Enhancing Aircraft Corrosion Resistance & Aesthetic Appeal Aerospace and defense parts can’t afford to fail. Every component must operate reliably in demanding environments, from moisture and chemicals to extreme temperatures. That’s why anodizing has become such a vital aerospace surface enhancement. By building a protective oxide layer on aluminum and metal parts, anodizing strengthens surfaces, extends component life, and ensures consistent performance. It also improves appearance, offering both functional and aesthetic benefits. What Is Anodizing? Anodizing is an electrolytic passivation process that creates a durable oxide layer on the surface of aluminum and metal components. This layer increases corrosion protection and [...]

Understanding NADCAP-Certified ChemFilm ChemFilm, also called chemical conversion coating or Alodine, provides aluminum with corrosion resistance, improved paint adhesion, and reliable electrical conductivity where required. This chemical treatment forms a thin protective layer that helps prevent oxidation while maintaining the metal’s dimensional integrity. In aerospace manufacturing, these coatings are typically applied by NADCAP-accredited processors, such as National Aerospace Processing (NAP), which operate under aerospace systems such as AC7004 and AC7108/11. Our controlled ChemFilm process ensures consistent coverage across complex parts and large production runs without changing dimensions.   What is ChemFilm? ChemFilm is a thin, protective aluminum coating created through a [...]

Understanding NADCAP Passivation for Aircraft Stainless Steel Parts (AC7108/12 & AC7004) What Is Passivation of Stainless Steel? Passivation of stainless steel is a process intended to make the metal surface less reactive to its environment and more resistant to corrosion, rust, and other irritants. The process creates a passive oxide layer on the metal surface, enhancing its corrosion resistance. These processes are often performed under NADCAP passivation standards (AC7108/12) within a certified aerospace quality system such as AC7004, ensuring compliance for critical aircraft components. Stainless steel parts can pick up very small contaminant fragments of metal oxides, fabrication debris, tamp iron, [...]

How Shot Peening Improves Fatigue Resistance Given the intensity of the aerospace environment, many aerospace companies prioritize manufacturing and metal finishing processes that improve the durability and fatigue resistance of their components. This is why many companies are taking advantage of the benefits of shot peening for the aerospace industry. As a NADCAP-accredited process, shot peening follows strict quality standards to ensure consistent performance in aerospace and high-reliability applications. National Aerospace Processing (NAP) is proud to be a trusted provider of NADCAP shot peening services and other aerospace surface treatments for many major names in the aerospace industry. With our years [...]

The Role of Aerospace Surface Enhancement Services What are Aerospace Surface Enhancements? A surface enhancement is a manufacturing process that adds a layer or additional treatment to the surface of a product or component. Surface enhancements are often considered the finishing touch and serve to achieve a desired look or protective layer, depending on the application and service environment of the component. Some metal finishers offer NADCAP certified surface finishing, which adheres to the stringent requirements of NADCAP to ensure consistency and quality. The aerospace industry relies on a range of metal finishing capabilities to ensure performance and durability in extreme [...]

The Benefits of Partnering with National Aerospace Processing (NAP) Global Reach & Unmatched Aerospace Expertise National Aerospace Processing (NAP) is proud to be a trusted provider of aerospace finishing and metal finishing services, with specialized expertise in aerospace and defense. Products finished by NAP are in use all over the world, from domestic commercial flights to elite military aircraft. We have earned coveted certifications from NADCAP, Moog, and major aerospace OEMs, including Collins, Parker, and Safran, with others under review. See our full scope of certifications > US-Based Services for Maximum Efficiency Given the ever-changing nature of import taxes and policies, [...]