The complete acid etching procedure is more efficient over the traditional caustic etching resulting in an ultimate reduction of concentrated etching times by 80%. Solar glare from bright sunlight can also be reduced as gloss levels on the surface of the final product are decreased.īetter Production Times and Use of Resources With a smoother surface, anodize application will also result in a higher quality finish. Less surface imperfections also mean a better tolerance to corrosion than previously achieved. This ultimately results in a better aesthetic appearance which can be extremely important in architectural products such as louvers. According to the Aluminum Anodizers Council, the process gives a finer more uniform pit distribution that is independent of the microstructure. Some of the processes’ by-products are also recyclable and can be reused as one of the components that is made into aluminum.Ī more consistent matte finish is also achieved by irregularities and imperfections such as extrusion lines or surface scratches being smoothed out to a level caustic anodizing cannot replicate. Acid etching also conserves water, using lower amounts during the steps of rinsing as the caustic process demands several rinses. This is accomplished by reducing the amount of metal loss by up to 90% during the finishing process and resulting in less ‘sludge’ waste as a by-product culminating in lower disposal rates. Ruskin continues to develop and optimize acid etch anodizing technology for louver production within its Juarez and Geneva plants.Īcid Etching is proven to be more environmentally friendly than the original caustic (alkaline) processes.
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