Hardness

CompCote® generates a very hard aluminum oxide (HV 1200). The film hardness lies between 300-600 HV, depending upon alloy and process. This is, as is the case for all anodic oxide films, only the apparent hardness since true hardness cannot normally be measured.

Resilient

CompCote® can take about twice as much stress as conventionally anodized films, as shown in the reverse bending fatigue test (ISO 1143).

Ductile

In the Charpy Fracture Test, CompCote® exhibits ductile tearing. Anodized and hardcoat films, on the other hand, exhibit a brittle fast fracture surface. CompCote® is clearly more ductile and is therefore more fracture tough.

Anodic oxide film SEM X 3.0K

CompCote® film SEM X 3.0K