Development of Water-Reducible Polyurethane Coating for Military Applications
Final rept. Aug 97-Aug 98
ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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The U.S. Army Research Laboratorys Coating Research Team has developed a water-reducible WR chemical agent resistant coating CARC utilizing hydroxy-functional polyurethane dispersions and water-dispersible polyisocyanates. This coating has met the Army requirement for chemical agent resistance, while having a volatile organic compound VOC content of less than 220 gl, and it provides improved weather durability, flexibility, and mar resistance. It has undergone field application testing at Letterkenny Army Depot and at Fort Sill. A military specification is being developed, and U.S. Patent 5,691,410 has been awarded. Since CARC is used on a wide variety of Department of Defense DoD equipment, users include painting installations across DoD such as Army Depots, Marine Corps Logistics Bases, and Air Force Logistics Centers and original equipment manufacturers. Application of the WR CARC at these sites can reduce VOC emissions by millions of pounds per year and, combined with the improved performance properties, will potentially avert costly expenditures for pollution abatement equipment while sustaining all Army mission requirements.
- Organic Chemistry
- Coatings, Colorants and Finishes
- Chemical, Biological and Radiological Warfare