Does a metal surface require any surface preparation prior to coating?
Every surface to be coated will have some type of surface contaminant whether it is dirt, oil, dust or metal oxide. The contaminant must be removed either by a chemical or mechanical process. • What is chalking? Chalking is a type of coating failure. A coating usually consists of binders, much like a glue that are mixed with pigments for color or other enhancements. Over time the binder weathers away leaving the pigment that is evident on your hand, much like an aluminum house. • What does accelerated testing mean? Accelerated testing is a form of testing materials in a compressed time frame. Two or more materials can be tested at the same time and in the same environment. • What is meant by general corrosion? General corrosion is characterized by uniform metal loss of a metal. No one area is any more corroded than another. • What causes the corrosion on copper to steel pipe under my sink? Due to the electrical potential difference of these two metals as shown on the electromotive forc
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- Does a metal surface require any surface preparation prior to coating?
