Parts Cleaning
Painting Aluminum
Question: We are a small ornamental iron shop.In an effort to offer a more durable outside railing to customers, we have been manufacturing our ornamental iron designs from aluminum using traditional structural, just as with wrought iron, one-inch-square tubes, one-half-inch punched channels for framing, one-half-inch square solids for balusters, molded top rail or a channel for a top cover.
Read MorePretreatment Over Pretreatment, Part 2
Question: Your response to “Pretreatment Over Pretreatment” in the February Painting Clinic should be amended to warn him that running aluminum through an Iron phosphate spray washer would make the sludge in the washer a hazardous waste (according to an earlier comment you made about a year ago). I believe the problem is created by the definition of acid washing of aluminum is a categorical hazardous waste (by EPA definition). When he cleans the washer, all the sludge that is normally sent to the landfill or flushed down the sanitary sewer would be considered an illegal disposal of hazardous waste.
Read MorePretreatment over Pretreatment
Question: We are considering forming an assembly and then painting it rather than painting the individual parts before assembling.
Read MoreMinimizing Rust, Part 2
Question: I read your clinic in the December issue and would like to point out factual errors in the section titled, “Minimizing Rust.” At the end of your response, you have given the parameters necessary to achieve a particular result in the salt spray test.
Read MoreCleaning Electrocoat Racks And Hooks
Question: What is the best method of cleaning electrocoat racks and hooks?
Read MoreMinimizing Rust
Question: What are the best processes for minimizing rust of powder coated steel poles?
Read MoreSealant Adhesion to Stainless Steel
QUESTION: We have a line of products for commercial buildings.
Read MoreOutgassing in Die-Cast Parts
Question: We are in the process of powder coating zinc die-castings and are having a problem with outgassing.
Read MorePainting Stainless Steel
QUESTION: We have a painted steel structure that has exhibited repeated corrosion problems despite all of our efforts in trying to find a paint that will successfully protect the structure.
Read More
