The logo on the IFSC building is Kilkenny Limestone & what we had to do in this case was completely strip the logo back to stone which meant removing the existing gold leaf & the primer which took some time.
The stone was then sealed & left to dry for 12 hours before 2 coats (12 hours between coats) of special primer was applied. Once this was dry, we applied 2 layers of gold size (bonding glue for the leaf) and then the logo was gold leafed.
In some places the logo had to get a double layer of leaf due to imperfections in the stone.
The finished logo looks amazing and will last for another 20-30 years.