Request InfoMoxtek Inc.Moxtek Inc.’s DuraBeryllium x-ray windows are resistant to many solvents, acids and bases, and DuraBeryllium Plus film provides maximum corrosion resistance. DuraBeryllium Plus is a low-Z material that, when applied to beryllium, creates a hermetic, corrosion-resistant window that is used for ultrahigh-vacuum applications. The thin-film windows are leak-tight and have high x-ray transmission. 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