I am designing pipe rack steel structure, which are to be fireproofed by
cement based material (like vermiculite) as 2 hrs rating to UL1709.
And the project spec. calls for applying painting system of primer + 1st
& 2nd coating of epoxy paint + top coating of polyurethane paint to
Here I have a doubt. Shall I apply the same painting system to
fireproofed steel, or just apply only primer to it considering the
contribution of fireproofing material to enhancement of the corrosion
Thanks in advance for any help or advice in advance.