Aluminum Etch and Cleaning

Aluminum etch solution can be used for both cleaning and inspection where an alkaline bath made of sodium hydroxide (NaOH) is typically used for cleaning or etching aluminum parts. The process involves etching aluminum parts to assess the grain size, prepare the surface for subsequent FPI (pre-pen etch) and detect surface defects.

Aluminum Etch and Cleaning Laboratory Inspection Service

At Element, we have the complete in-house capability and equipment, chemicals, procedures, qualified personnel, waste treatment, environmental related permits and industry certifications to accomplish high quality aluminum cleaning and aluminum etch processing for the following specifications:


  • RPS 128
  • RPS 576
  • RRP 51000


  • BAC 5786
  • HS 7725 (included in pre-pen etch)
  • C5098 (included in pre-pen etch)
  • EIM Code 2, Method H
  • RPS 676
  • RRP 51008
  • SS8712 (included in swab etch)
  • CP3605
  • C129

Our aluminum etch and cleaning can be applied to housings, enclosures, sleeves, brackets, tubing, swash plates, cylinders, spars, spacers, links, supports, fittings, flanges, bushings, beams, adapters, sockets, nozzles, shear pins, tie rods, angles, levers, pistons, hinges, latches, spirals, shim blocks, seal housings, retainers, and more.

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