Powder Coated Tough - Spring 2008 - (Page 44) Stage 1 Stage 2 Stage 3 Interlox 5705 - Zr conversion coating Stage 4 Rinse Stage 5 Dry Comments Regarding Pretreatment Approvals Applied UniPrep SP B - Cleaner Rinse operates below <130 F and no oil separator is required. Biotechnolo-gy significantly extends the cleaner life. Pretreatment On Option 1 On UniPrep PRO Std. Dry in Place Parameters organic Fe phosphate replacement Off Optional On Normal Operation Clear pretreatment appearance. Performance is equivalent to Fe phosphate, works on multiple substrates. Does not use a rinse after application. Does not require tank heating. No phosphorous is present in the coating and the waste treatment is nominal or in most areas does not require treatment. Sludge-free. BOSCH Approval: MSS 1118 ; ASTM D1654, ASTM D714, Whirlpool Approval: Other Standards Met (paint type also influences performance): EN ISO 2409, GES 0090, GES 0093 (.91 Kg/15.9 mm), ASTM D522, ASTM D2247, ASTM B117 (max creepage of 5 mm after 500 hours), UNI ISO 4530, UNI 7674, Enamel adhesion test (confidential) Cooper Automotive: Chrysler Honda Approval: HES D 2016 Class 2 Grade 2 MIL C 5541 for 1000, 3000, 5000, 6000 series alloys MIL C 5541E Class 3 for all aluminum substrates Pretreatment On Option 2 On On On On Normal Operation Blue / Purple even conversion coating when applied on Fe substrates allowing easy inspection. Provides consistent coating weight and superior performance when compared to Fe phosphate. Does not require a conditioner. On Al this product provides both a conversation coating for paint adhesion but also a corrosion resistant passivate. Ideal for Zn & Mg substrates. Pretreatment On Option 3 On On On On Normal Operation Highest performance pretreat- MIL C 5541 for 1000, ment for steel substrates. 3000, 5000, 6000 series alloys Pushing Powder According to Kochilla, Atotech is focused on bringing new green technologies to market. He says their cleaners reduce a powder coater’s carbon footprint (energy, oil, cleaner dumps, waste treatment, sludge/landfill) and the phosphate replacements also have a long list of environmental benefits, including energy and water savings, sludge elimination, worker safety due to virtual elimination of nozzle cleaning and waste treatment—all of which are product specific. He says their paint strippers also utilize biotechnology to extend the stripper life, which elimi- nates the high energy requirements of burn-off ovens and ash removal steps. “Our product development strategy is in alignment with powder coating market drivers. The powder coating industry and Atotech share the same bright future,” Kochilla concludes. And although the senior Wright utilizes both powder and liquid at WW Custom Clad Inc., today Carolinas Custom Clad is a powder-only custom coater. When the venture first began, the junior Wright says that CCC did roughly 90 percent powder and 10 percent liquid but that evolved rather quickly. “We’ve gone exclusively powder as we’ve changed our focus and our equipment,” Wright says. “We like to modify our equipment, our facilities and our capabilities based on our customer mix—to make the processing of our customer’s product more efficient.” Sharon Spielman is editor of Powder Coated Tough. She can be reached at 847-302-2648 or via e-mail at sspielman@powdercoating.org. Chris Wright can be reached at 803-985-3133, or visit Carolinas Custom Clad at www.carolinas customclad.com. John Kochilla can be reached at john.kochilla@atotech.com, or visit www.atotech.com. 44 Powder Coated Tough http://www.carolinascustomclad.com http://www.carolinascustomclad.com http://www.atotech.com
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