Patent ID: 8110535

Claim:
A semi-aqueous stripping and cleaning composition comprising: a. 19-22% by weight monoethanolamine; b. dipropylene glycol methyl ether; c. 0.575-0.875% by weight tetramethylammonium hydroxide; d. t-Butylcatechol; and e. remainder water; wherein pH of the composition is greater than 9, and wherein the dipropylene glycol methyl ether and the tetramethylammonium hydroxide are present in the composition at a weight ratio of from 13.7:1 to 27.2:1 of dipropylene glycol methyl ether to tetramethylammonium hydroxide, the dipropylene glycol methyl ether and the monoethanolamine are present in the composition at a weight ratio of from 0.55:1 to 1.21:1 of dipropylene glycol methyl ether to monoethanolamine and the tetramethylammonium hydroxide and the tert-butylcatechol are present in the composition at a weight ratio of from 0.25:1 to 0.38:1 of tetramethylammonium hydroxide to tert-butylcatechol.