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AWWA ACE60094
- Cavitation Erosion Study of Metals and Coatings - Including Polyamide-11 Powder Coatings
- Conference Proceeding by American Water Works Association, 06/17/2004
- Publisher: AWWA
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Cavitation erosion is a major mode of failure of coatings and metals in water industry applications. Using ASTM Method G-32-98 (Cavitation Erosion Using Vibratory Apparatus), this study demonstrates that thermoplastic powder coatings based on polyamide-11 (Rilsanâ Fine Powder) have exceptional resistance to cavitation erosion - substantially better than other coatings, such as epoxies, used in water industry applications. In fact, polyamide-11 coatings perform better than metals, including stainless steel. Gravimetric and optical data for a variety of coatings and metals are discussed. Moreover, analyses show that in addition to a mechanical component, there is a chemical component to cavitation erosion. Includes tables, figures.