Al Etch L is a concentrated, liquid, alkaline etchant for use on Aluminum and its alloys. It produces a uniform, satin-like finish on aluminum that is free from heavy scale. Unlike powders that are dusty, Al Etch L is easy to use and can be diluted to a 6%/ vol solution with tap water for metering into the tank. Al Etch L always has some dissolved aluminum in the solution ensuring little to no scale build up on the tank and heating coils thus reducing overall maintenance of the equipment. Immersion times can be varied from 30 seconds to 15 minutes when working on different alloys. Temperature of operation is typically 100°F to 175°F.
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