Painting Metal Siding on So. Cal. Industrial Structures

Friday, March 07, 2014

Metal siding is one of the most common siding types for Southern California’s industrial structures. It is durable, affordable and allows for very rapid construction. As the metal coating is typically factory-applied it is relatively low maintenance, but not zero maintenance. Whether it be steel or aluminum siding, the metal paint will eventually oxidize (become chalky and faded, rubbing off onto your hands) and the metal can start corroding, especially if there have been any dents or scratches. In other cases, you may simply need new colors or a band or stripe design added to your metal sided building.

Surface preparation approaches depend on the condition of the siding. It seems that in Southern California, where we have so much intense sunlight, paint oxidizing is the more common symptom that metal-sided steel structures need refinishing. Applying a detergent and/or pressure washing will usually take care of any oxidized paint and leave something for the new coating to adhere to. If there is rust or other corrosion, it may be necessary to use dry abrasive or slurry blasting methods to make sure the corrosion is gone. In some cases, panels may need to be replaced. 

Since the original surface may be compromised in various levels, it is typically necessary to prime before applying the topcoat. Rust inhibitive primers go over any areas that are bare or had rust removed. In cases where the paint oxidization is extreme, there are solvent-thinned primers that can ensure that loose particles will not cause a problem for the finish coat.

Lighter colors are often recommended in Southern California since they reflect more light away, which makes the paint last longer and also saves on air conditioning costs. However, there are excellent varieties of metal paint that will hold up well when you want them in particular colors, such as those of your company’s logo. See this blog on choosing the perfect paint colors for your business. It is important to use a type of paint that can handle the conditions the factory coating was designed for, like a lot of heat, weather and expansion/contraction. Acrylic steel coatings are one common choice.

If your aluminum or steel clad siding (or roofing) needs refinishing, talk to an experienced industrial painting contractor. Cor-Ray Painting in Santa Fe Springs is fully equipped to help you with metal siding painting and coating jobs for any kind of structure in L.A., San Diego, Irvine and throughout Southern California. Give us a call at (562) 906-9770, or click here to get an estimate. 

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