Chemetall’s Gardobond AP 9811 is a three-stage, non-phosphorous pretreatment designed to replace iron phosphates for wok on a variety of substrates. Compatibility with mild steel equipment eliminates the need for stainless steel, while its compatibility with most tap water means that reverse osmosis or deionized water equipment is also unnecessary. The pretreatment provides salt spray performance equal to or better than many iron phosphate processes, according to the company, and meets the need for better cleaning than can be achieved with a three-stage cleaner-coater process. The single-package product is biodegradable and cuts costs by operating at ambient temperature.
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