Acid Etched Anodize

Linetec announces a change in its anodize etch chemistry from traditional, caustic etch to a more environmentally-friendly acid etch process.

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Linetec announces a change in its anodize etch chemistry from traditional, caustic etch to a more environmentally-friendly acid etch process. In addition to its green attributes, acid etch creates an aesthetically appealing, “frostier” matte finish that helps hide small defects, such as die lines, flow lines, minor corrosion and scratches, that may occur on the aluminum surface of architectural products. For the short term, the company will continue to offer both the caustic and acid etch process. Anodized aluminum also can be stripped back to raw aluminum through our traditional etch process and then can be painted, or re-anodized with acid etch. The process byproducts from the acid etch bath are recyclable. The acid etch anodize process also reduces waste and energy used with traditional etch processes. Furthermore, acid etch has the viscosity of water and will not collect in the small recesses of aluminum extrusions or narrow aluminum tubes, enhancing the durability and lifecycle of the finished product, according to the company.

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