CoatingsPro Magazine

MAR 2016

CoatingsPro offers an in-depth look at coatings based on case studies, successful business operation, new products, industry news, and the safe and profitable use of coatings and equipment.

Issue link:

Contents of this Issue


Page 54 of 84

54 MARCH 2016 COATINGSPROMAG.COM start," Sanchez said. "Just like that, we'd move section by section up the f light deck." T he team would do surface prepa- ration on a 9,000 - to 10,000 -square-foot (836.1–929.0 m²) section at a time. Flight on Standby Te proposal was accepted, and the crew got to work fulflling their objectives. Once a section was prepped and cleared for coating, the crew put down American Safety Technologies' MS-7CZ Metal Primer, a heav y duty, anti-corrosive epoxy-poly- amide primer that forms a tough abrasion-resistant flm to protect the substrate from salts and chemicals. Te primer was applied at a thickness of between 2 and 7 mils (50.8–177.8 microns) using a Graco airless spray and 74:1 pump. It was applied in one pass. Tat was followed up with a stripe coat, put down as thinly as possible. Ten the crew applied the MS-440G Non-Skid color topping. It was applied with hard phenolic rollers, a minimum spread rate of 18 square feet (1.7 m²) for 1 gallon (3.8 L), and a maximum spread rate of 30 square feet (2.8 m²) for 1 gallon (3.8 L). Just like with the surface prep, the primer and the topcoat were put down section by section. Lastly, they applied MS-200 as a visual landing aids coating. Putting down the coating was an intricate process because each layer needed diferent numbers of hours to cure, Sanchez said. Tat meant that each section could not be fnished in one day. For example, the non-skid coating needed 96 hours to cure before the crew could drive heav y vehicles on it. And that timeline was extended even further for heavier aircraft. Te Nav y had to wait seven days after the coating was applied before they could accomplish any fight operations, Sanchez said. So the crew put down the non-skid coating, then waited 24 hours before they could walk on it. Ten they would apply the visual landing aids coating. Troughout the coating process, the inert corrosion cells continued to be a concern because they are porous, Sanchez said. "Tese areas tend to absorb the coatings, leaving these areas with less mils of paint versus the 'good ' substrate, which results in less coatings coverage," he said. So on the areas over the corrosion cells, the crew put down two coats of primer. T here were other considerations beyond militar y require- ments, Sanchez said. T he state of California has air pollution control restrictions that say all coatings used must have a volatile organic compound content of less than 340 grams per liter (0.8 lbs per 0.3 gal.). " T he only exception is the VL A (visual landing aid) markings, which are considered specialty coating," he said. For those, the limit is 420 grams per liter (0.9 lbs per 0.3 gal.). On Military Time A crew of 30 men worked on the job. Tey set up four-foot-tall (1.2 m) scafolding around the entire fight deck as a safety precaution and wore hearing protection, steel-toed boots, hard hats, safety glasses, and half-face respirators. Te job lasted 52 days, and thanks to Sanchez's detailed planning, it was completed on time. Tat is especially import- ant for a Nav y job, where the term "military time" takes on a new meaning. "W hen working on military projects, there are always time constraints and deadlines to be met," Sanchez said. "Of course, the Nav y has deadlines and feld trials to meet, and you can't aford to delay a military schedule." But the work was done on time, and when it was fnished, it looked great, Sanchez said. Tat means on their next mission, the crew of the USS Boxer can know their boots and aircraft will stay safely on the deck — wherever that deck might take them. CP Navy Ship VENDOR TEAM 3M Safety equipment manufacturer 3M Center St. Paul, MN 55144 (888) 364-3577 American Safety Technologies by ITW Coatings manufacturer 130 Commerce Dr. Montgomeryville, PA 18936 (215) 855-8450 Blastrac, NA Equipment manufacturer 13201 N Santa Fe Ave. Oklahoma City, OK 73114 (800) 256-3440 GOFF, Inc. Equipment manufacturer 12216 NS 3520 Seminole, OK 74868 (877) 265-2925 Graco Inc. Equipment manufacturer 88 11th Ave. NE Minneapolis, MN 55413 (612) 623-6000 Jetstream of Houston Equipment manufacturer 5905 Thomas Rd. Houston, TX 77041 (800) 231-8192 The crew finished the project by applying visual landing aids to the d e ck usin g A p p lie d A m e r ic an Safet y Te ch n o logie s' MS-200. A n d with that, Sanchez and his crew could call it a day!

Articles in this issue

Links on this page

Archives of this issue

view archives of CoatingsPro Magazine - MAR 2016