The E-Strip 920 solution is used at room temperature to strip copper plate from steel surfaces. E-Strip 920 does not contain any chlorides, utilize ammonium hydroxide or utilize ammonia gas.
There are two granular components to the process. E-Strip 920M is used to make up the initial solution at a concentration of one pound per gallon of water and E-Strip 920 which is used thereafter to replenish the solution to maintain its strength for stripping. The solution must be agitated with bottom-fed compressed air or mechanically for effective stripping.
E-Strip 920 will not attack steel during stripping.