KEPLA-COAT® layers applied to aluminuim consist of up to 60 percent of corundum. The remaining
layer components are mainly Al2O3 and boehmite. Depending on the alloy of the coated workpiece,
KEPLA-COAT® can reach a thickness of up to 150 µm. The layer thickness of structural aluminium
components usually ranges from 40 to 60 µm. KEPLA-COAT® provides not only excellent wear
protection, but also perfect uniform layer, dimensional accuracy and hardness.
KEPLA-COAT®-coated substrates show a much greater fatigue strength than substrates with similar
layers. These layers can resist aggressive gases such as chlorine and boron trichloride and a
layer thickness of 30 μm, for instance, shows a corrosion resistance of more than 3,000 hours in
the salt fog test according to DIN EN ISO 9227. In addition, KEPLA-COAT® ensures extremely good
anti-friction properties in combination with PTFE or other dry lubricants.