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A Conversation With ... Jim Andrews, Pneu-Mech Systems
Andrews recently promoted to President
Read MoreFlash Rusting
Our problem is that right after the acid pickle, the tanks flash rust severely before we can get them into the zinc phosphate solution.
Read MoreCleaning and Rust Inhibition
My employer orders metal pipe fittings (elbows, etc.) from China and stores them on site. The fittings are covered in oil to prevent rust, and before we can use them we send them out to be thermal cleaned to burn off the oil. We then receive them and run them through our powder coat line. I would like to eliminate this wasteful motion and receive them ready-to-use.
Read MoreBlack Stains After Curing
We are doing e-coating for small components like nuts and bolts, but are seeing black stains on the parts after curing.
Read MoreSquare Transfer vs. Automatic Hoist Lines
We are a plating company about to embark on the world of e-coat and are having a hard time deciding which type of machine to buy.
Read MoreDielectric Strength
We are considering using e-coat to paint electrical cabinets and wanted to know if you could tell me the dielectric strength of e-coat and the relationship with electrical isolation.
Read MoreBrown Spots in Clear-coat
The parts look good coming out of the washer and there are no obvious stains. The clear coat is applied in an automated booth and it looks fine before it is cured, but when it comes out of the oven, there are brown spots in the film that look like drips of oil.
Read MoreWater Spots in Powder-Coated Film
Some of our parts show water spots through the coating after it is cured. You can see the outline of the spot through the film, especially with some of the lighter colors.
Read MoreTest for Coverage in Faraday Areas
What tests would you recommend if you want to measure Faraday Cage effect on the actual part to see how good the coating has covered and protected the part?
Read MoreZinc Plating and Crystal Growth Revisited
In the February issue, I answered a question regarding formation of excess crystals in a potassium chloride zinc plating bath. I recently received additional information from one of the plating shops regarding its problem.
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