International Etching, Inc. HOME COMPANY PROCESS INDUSTRIAL DECORATIVE CONTACT US Materials and Limitations What materials can be specified? Almost all alloys and metals are etchable. Etching baths at International Etching, Inc. are set for processing all copper, brass, cold-rolled steel, stainless, nickel, silver, molybdenum, and electronic alloys, as well as, many custom composites and inlays. What are some of the size limitations that photo-chemical machining can produce? Considerable variation in size is achievable ranging from etched thicknesses of .0005” to .060”. Parts like elevator panels, .250” thick by 60” in length can be chemically milled with etched down characters or Braille (raised). Widths exceeding 24” require custom processing. Please ask. Precision Parts for Precise Requirements International Etching, Inc. sales@internationaletching.com | 7 Ninigret Avenue, Providence RI 02907 Tel 888.781.6800 or 401.781.6800 | Fax 401.781.6813 Copyright © 2007 – 2021 InternationalEtching.com

International Etching, Inc. HOME COMPANY PROCESS INDUSTRIAL DECORATIVE CONTACT US Manufacturing Step 1: Dry film photo resist is laminated to the sheets of metal. Step 2: Images are transferred to the metal by contacting the film tool to the laminated metal sheet and exposing to ultra violet light. Step 3: After developing the image onto the resist, the exposed sheet of laminated metal is loaded into the etching machine. Step 4: In the etching chamber chemistry is sprayed top and bottom to etch both sides of the metal sheet at the same time. Step 5: A conveyorized system moves the metal sheet thru the chemical process where the etched sheet is removed and the process of chemical-milling is completed. Step 6: Etched metal sheet with pieces removed, which are formed and manipulated later. The pattern and shape in this photo was surface etched as well as pierced all in the one process. Precision Parts for Precise Requirements International Etching, Inc. sales@internationaletching.com | 7 Ninigret Avenue, Providence RI 02907 Tel 888.781.6800 or 401.781.6800 | Fax 401.781.6813 Copyright © 2007 – 2021 InternationalEtching.com