What is BS EN 4474- Aluminium pigmented coatings about?  
BS EN 4474 defines the coating methods and characteristics of aluminium pigmented coatings to BS EN 4473 which may be applied to fasteners in titanium, titanium alloys, heat-resisting nickel-base, or cobalt-base alloys, and corrosion-resisting steels.
The purpose of BS EN 4474 is to reduce galvanic corrosion, friction, and the risk of seizing. BS EN 4474 has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN).
Who is BS EN 4474- Aluminium pigmented coatings for? 
BS EN 4474 on aluminum pigmented coatings is useful for: 
- Spacecraft and space products manufacturers         
- Aerospace products manufacturers   
- Testing agencies involved in the inspection of spacecraft and aerospace products         
- Quality control personnel for spacecraft products      
- Aeronautical engineers 
- Space researchers
Why should you use BS EN 4474 - Aluminium pigmented coatings?  
Organic coatings are a complex mixture of polymers, fluid carriers, pigments, corrosion inhibitors, and additives. As far as aluminum and aluminum alloys are concerned, organic coatings are commonly used to protect engineering structures and manufactured products from corrosion. Surface coatings, such as thermal control paints and corrosion protection coatings are affected, both on the ground and after launch, by exposure to the environment. It is therefore important that the adhesion of the coating to the relevant substrate remains at an acceptable level after exposure to the relevant environmental condition.
BS EN 4474 covers the characteristics, requirements and applying the method of aluminum pigmented coatings. BS EN 4474 helps in pre-treatment process as well as the uniform application of aluminum pigmented coating which ensure quality of work.
