Larry Chesterfield
Bright Anodized parts Don't Pass the Cass Test
Question: I have a roll-formed part made of 5052 alloy aluminum sheet.
Read MoreControlling Dissolved Aluminum in the Type II and Type III Anodizing Bath
Question: What is the purpose of controlling the concentration of aluminum in the anodizing bath?
Read More“Touch-up” For Scratches On Clear Anodized Parts
Question: Is there any recommended practice that you’d recommend that will touch-up scratched clear anodized extrusions other than stripping and rerunning the parts?
Read MoreEtching Prior to Chromate Conversion Coatings
Question: We are planning to install a chromate conversion coating line using the standard hex chrome process.
Read MoreSelective Smut On Sealed Parts
Question: We are producing anodized, electrolytically colored aluminum solar panels.
Read MoreKeeping a “No Dump” Etch in Balance
We recently have had a few racks of metal that had a galvanized, over-etched appearance. The problem was coming from the etch tank and the racks were etched the normal amount of time. Do you have any idea what could cause that appearance?
Read MoreFatigue Strength of Anodized Aluminum
Question: I have a question about an article on the web that was attributed to you.
Read MoreAnodized Aluminum Building Facade
Question: Part of our work is to assess the condition of buildings for our clients.
Read MoreWhite Spots on Anodized and Dyed Parts
Question: After Type II anodizing our parts are dyed using organic dyes and then sealed in hot nickel acetate solution.
Read MoreType IIB Anodize
Question: I am looking for specific information regarding Type IIB anodizing per MIL-A-8625.
Read MoreRinsing Parts with Entrapped Chemical Residue
Question: We have a small, aluminum tubular part about one inch in diameter that we fabricate by, among other methods, torch-brazing a threaded extension to one end.
Read MoreCorrosion on Die Cast Parts
Question: We have a corrosion problem with a small, hand-size, die cast aluminum boiler that we manufacture.
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