The client was seeking a coating system which was both surface tolerant and fast drying.  The underground metro system was cast iron steel, which could not be shutdown or abrasive blasted since it was in operation 365 days a year.  After extensive testing by head of Baku Metropolitan Tunnel Authority, RUST GRIP was sole specified and painted every night from 1am to 5am when the train system was offline. 

2 coats of RUST GRIP, each coat @ 4 mils DFT

In 5 nights, over 6,500 ft2 of heavily rusted cast iron steel was encapsulated with RUST GRIP.