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Gerhard Heiche GmbH
| Gerhard Heiche GmbH Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20090050182 | Corrosion Resistant Substrate and Method for Producing the Same - A corrosion resistant substrate is provided having a Cr(VI) free corrosion resistant two layer coating. The substrate is substantially comprised of aluminum, an aluminum alloy, magnesium or a magnesium alloy. A first wet chemical deposited inorganic passivation layer is directly positioned on the substrate and a second organic modified polysiloxane layer is directly positioned on the passivation layer. | 02-26-2009 |