Xtalic's XPROTECTTM coating is more corrosion resistant than hard chrome coatings and at least, if not more, corrosion resistant than high-phosphorous electroless nickel coatings. In a recent demonstration of this performance capability polished steel piston rods were coated with 12µm of XPROTECTTM and compared to 12µm coatings of hard chromium on commercially available hydraulic bar stock. All of the samples were subjected to ASTM B117 Neutral Salt Spray Testing. The photographs below give striking visual evidence of the difference in corrosion resistance offered by the two coatings. The commercial hard chromium coatings are failing dramatically in this test after only 48 hours of exposure in the test. Equal thicknesses of the XPROTECTTM coating are lasting well over 1000 hours with no corrosion failures.
12 µm XPROTECT™ coated steel shafts after exposure to NSS, with exposure times as shown.
Shafts are 3/8”x6”
12 µm hard Cr coated steel
shafts after 48 hours of exposure to NSS.
Shafts are 1/2” x 6”