Written on 09.02.2012 - Technology
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Kraton FG1901 for coating application successfully passes demanding test series

Kraton said it has tested the performance properties of an industrial coatings starting point formulation made with Kraton FG1901 using ASTM standards. The testing was performed on bare, cold rolled steel panels with a coating thickness of 2 mils and included salt spray resistance, adhesion, and impact, which all showed very good performance results, according to a company announcement.

The FG1901 formulation passed 2000 h of salt spray testing under ASTM B117-11. After that time, only 0.1% of the coating area was exhibiting corrosion. Adhesion was tested using the ASTM D3359 standard and the FG1901 formulation produced a 5B result, or 0% coating loss, which is the highest possible grade for the test. Gardner impact testing was also conducted under ASTM D2794, and the coating tested both direct and indirect impact at 160 in-lbs.

"These test results validate that Kraton FG1901 demonstrates superior water resistance, adhesion and flexibility, and highlights why we are excited about the opportunities for Kraton polymers in industrial coatings," said Jason Surman, Business Development Manager, Coatings. "We are exploring the use of our polymers in industrial maintenance coatings and feel that we can bring value in areas such as structured steel, bridge and decking, and storage tanks," he concluded.

The Kraton FG polymer series are SEBS polymers with maleic anhydride grafted onto the rubber midblock.