Yes, Armoloy Thin Dense Chrome (TDC) is one of the few metal coatings that can run successfully against itself without causing galling, fretting, or excessive wear. This makes it ideal for metal-on-metal contact in low-lubrication or dry-running environments, such as in linear guides, sliding components, or high-load assemblies.
When engineering parts with Armoloy on both mating surfaces, it’s important to adjust for coating thickness in your dimensional tolerances — typically 0.00005″ to 0.0003″ per surface. The coating’s micro-nodular structure helps retain lubricants if used, but is also effective without lubrication in many industrial scenarios.