MIL-DTL-64159 (INTERIM AMENDMENT 1), DETAIL SPECIFICATION: COATING, WATER DISPERSIBLE ALIPHATIC POLYURETHANE, CHEMICAL AGENT RESISTANT (06 MAR 2007) [USE IN LIEU OF MIL-DTL-64159]., This specification covers water-dispersible, chemical agent resistant, aliphatic polyurethanecoatings for use as a finish coat on all military tactical equipment, which includes ground, aviation and relatedsupport assets. The materials are free of hazardous air pollutants (HAP-free), lead and chromate (hexavalentchromium) free, and have a maximum volatile organic compound (VOC) content of 220 g/l (1.8 lb/gal) aspackaged.