We were asked by a contractor to a council, what could be used to remove glue residue used to fix tactile units to a pavement. Solvents are the answer, so we provided samples of D’Limonene, Bituclean & Citra Force – all worked well.
The process was to apply the product, and let it work for around 10 minutes, then aggitate the surface, and then rinse off with a degreaser (U Beaut) & water.