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Houghton International patents new aluminum etching technology

Tuesday, October 17, 2017   (0 Comments)
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Houghton International has obtained a patent for its new aluminum acid etching technology that provides a superior uniform matte finish at low gloss values with minimum aluminum dissolution. The U.S. patent entitled "Methods and Compositions for Acid Treatment of a Metal Surface" protects Houghton's new technology for aluminum acid etching, which improves upon conventional caustic etching.

Compared to conventional caustic etching, Houghton’s revolutionary Acid Etch technology significantly reduces etch time, reduces waste sludge by over 50% and is performed at lower temperatures, according to the company's press release. This process provides a superior uniform matte finish which cannot be achieved with conventional methods. For aluminum extrusion customers, the technology is very effective in hiding extrusion lines and is not sensitive to zinc contamination. More...