!Ourcompany base on ssd chemical solution and activation powder for cleaning black Dollars, euros, pounds and any other currency from any security color to its original state. Our SSD Chemical Solution used to clean all type of blackened, tainted and defaced bank notes. Our technicians are highly qualified and are always ready to handle the cleaning perfectly. Our Chemical is 100% pure. All our chemicals are sold with manual guide that provides instruction on how to use the chemical to perform the cleaning for those that do not need technician assistant to clean their notes.