Patent ID: 8173586

Claim:
A method of removing a coating from an intentionally colored concrete floor comprising: a) applying a coating removal composition to an intentionally colored concrete floor, said colored concrete floor having a colorant component and coating; b) allowing the coating removal composition to remain on the floor for a period of time; and c) removing the composition and coating from the floor, wherein the coating removal composition comprises: at least one weak metal binding agent, wherein the weak metal binding agent is an ethoxylated amine having the formula: where R, R′, and R″ are independently C3-C26 alkyl, aryl or alkyl ether groups wherein y is an integer from 2 to 10, z is an integer from 1 to 20, such that y+z=6 to 26, x is an integer from 1 to 15 and n is an integer from 1 to 25; a solvent system comprising at least one alcohol or ester; and a corrosion inhibition system; wherein the coating is a protective coating.