Hi, I am involved in the conversion of a Victorian mill building area into a residential apartment. the internal construction is exposed brickwork and iron/steel posts and columns. We want to remove the existing paint to the iron/steel and get back to the natural finish but would like to use a clear intrumescent paint finish to comply with fire regs/building control - can you please confirm a spec?....I have used Envirograf in the past for a similar project and the coating went on white then dried clear...I want to use the same again but can't locate the exact spec, thanks - Karl