Reverse graffiti spotted in Singapore today at the old Kallang Gasworks. By Caltex – Clean by Techron. It will be cleaned off completely in 8 weeks. Wonderful execution and environmentally friendly too!

It’s not the first time a reverse graffiti concept is used to spread an environmental protection message. The World Carfree Day 2007 did a spectacular one in Sao Paulo as well. Nonetheless, I am really impressed by this wonderful out-of-home execution!

Really really good….