Cetyl Alcohol Lubricant Coating (CGF)
Anti-fretting coating for fasteners and threaded components
Process Description
Cetyl alcohol lubricant coatings (CGF) are specialized lubricant coatings used to reduce fretting corrosion and stabilize assembly characteristics. In aerospace applications, CGF coatings are primarily applied to threaded components and fasteners where reproducible assembly forces, controlled friction behavior, and protection against micro-wear are critical.
Cetyl alcohol is a long-chain fatty alcohol that forms a thin, uniform lubricating film on the surface after application. Characteristic properties of CGF coatings include a dry, non-tacky lubricating film, defined friction and assembly characteristics, reduction of fretting corrosion under micro-movements, and no conventional lubrication using oil or grease.
Typical applications include threaded components, screws, bolts, and nuts, fasteners in structural joints, and applications with defined assembly and disassembly requirements. CGF is not a classic dry film lubricant, not a wear protection coating for sliding surfaces, and not a corrosion protection system. We apply CGF selectively for clearly defined applications, in accordance with aerospace and OEM specifications, and as part of coordinated fastener and joint systems.
Advantages
Applicable Standards & Norms
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Request now View additional coating processesFrequently Asked Questions about Cetyl Alcohol Lubricant Coating (CGF)
How does CGF differ from DFL?
Cetyl alcohol lubricant coating (CGF) primarily targets fretting corrosion on threaded components and fasteners, while Dry Film Lubricants (DFL) are designed for sliding surfaces and broader wear scenarios. CGF is not a classic DFL and not a wear protection coating for sliding surfaces.
Where is CGF typically applied?
CGF is primarily applied to threaded components, fasteners in structural joints, and applications with defined assembly and disassembly requirements. Reproducible assembly forces and controlled friction values are the key objectives.
Does CGF provide corrosion protection?
No. CGF is not a corrosion protection system but a functional anti-fretting coating. For corrosion protection, separate processes such as IVD Aluminum, vacuum cadmium, or RBC are used within a coating architecture.