COATING COMPOUND, THERMAL INSULATION. MUST MEET OR EXCEED MIL-PRF-81904C/QPL 91904 (AS), GHOST GRAY, IAW FED STD 595, NO. 36375.MATERIAL MUST INCLUDE THIXOTROPE.CERTIFICATE OF ANALYSIS AND SDS ARE REQUIRED WITH EACH SHIPMENT. PRODUCT IS TO BESHIPPED IN 55 GALLON DRUMS (4 DRUMS PER PALLET, 500 LBS PER DRUM) AND THE MATERIAL MUSTBE PALLETIZED. THE GOVERNMENT SHALL ONLY CONSIDER PRODUCTS AVAILABLE FROM MILC-81904B APPROVED VENDORS IN ACCORDANCE WITH SPECIFICATION MIL-C-81904B.