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US 5,985,454 AGranted
Anti-fouling coating for turbomachinery
AssigneeSermatech International, Inc.
InventorsBruce G. McMordie, Mark F. Mosser
Life of this patent
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Abstract
Multilayered coatings comprising a sacrificial primer layer, a non-sacrificial second layer, and a polymer topcoat are disclosed.
Claims12
A coating which comprises
- a first cured layer of an adherent aluminum- or aluminum alloy-filled ceramic containing inorganic phosphate in contact with a surface, the first layer being either
- (1) filled with an aluminum alloy or a pure aluminum powder and having been made galvanically sacrificial and having an electrical resistance of less than 15 ohms measured with probes 1" apart,
- a second cured layer in contract with the first layer, which second layer contains an inorganic phosphate or silicate binder and finely divided aluminum or aluminum alloy powder which second layer is not galvanically sacrificial greater than 15 ohms measured with probes 1" apart, and
- a cured top layer which comprises a thermally stable organic polymer sealer.
1 more element
Dependencies are inferred from the claim text.