PTFE Metallic Scrapers: Case Study Eclipse chose a specific, unhardened grade of stainless steel for the metallic scraper. The unhardened stainless steel provided aggressive rod scraping while reducing the risk of damaging the cylinder shaft. The First Clients Issue Eclipse was approached by a customer using a hydraulic cylinder in a metal foundry. Intense heat and marring media presented a challenging environment for any seal component. The cylinder was close enough to the molten metal to get slag deposits on the cylinder rod when fully extended. Slag, a by-product of the smelting process, is often a mixture of metal and silicon oxides. The hard and abrasive properties of the slag were pushing conventional rod wipers and scrapers beyond their limits and allowing damaging contaminates into

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