Removing adherent organic material

A solution capable of removing carbonized organic material from the surface of an anodized aluminum substrate at room temperature, said solution comprising:

• water, having dissolved therein,
• up to 0.25% potassium silicate;
• from 5 to 11% of at least one alkali metal carbonate comprises one selected from the group consisting of potassium carbonate, and sodium carbonate;
• at least one organic solvent in an amount up to 20%, said organic solvent comprising one selected from the group consisting of dipropylene glycol normal propyl ether and N-methyl-pyrrolidone, and an amount of hydrotrope effective to render said organic solvent soluble in said solution;
• up to 10% amino alcohol consisting essentially of 2-amino-2-methyl-1-propanol;
• a surfactant consisting essentially of sodium lauriminodipropionate in an amount up to 25%;
• and
• at least one corrosion inhibitor in an amount up to 15%, said corrosion inhibitor consisting essentially of at least one fatty acid, said solution having a pH in the range of from 10 to 12.

A solution capable of removing adherent organic material from the surface of a solid substrate at room temperature, said solution comprising:

• a first solvent, having dissolved therein,
• up to 2% alkali metal silicate;
• a source of alkalinity, said source being substantially free of alkali metal hydroxide ions;
• at least one organic solvent in an amount up to 20%, and an optional hydrotrope in an amount effective to render said organic solvent soluble in said solution;
• from greater than 0 to 10% of 2-amino-2-methyl-1-propanol;
• and
• at least one surfactant in an amount up to 25%;
• said solution having an alkaline pH less than about 12.

A solution capable of removing adherent organic material from the surface of a solid substrate at room temperature, said solution comprising:

• a first solvent, having dissolved therein,
• up to 2% alkali metal silicate;
• a source of alkalinity, said source being substantially free of alkali metal hydroxide ions;
• at least one organic solvent in an amount up to 20%, and an amount of hydrotrope effective to render said organic solvent soluble in said solution;
• up to 10% amino alcohol;
• at least one surfactant in an amount up to 25%;
• and
• up to 15% corrosion inhibitor, wherein said corrosion inhibitor consists essentially of at least one phosphate ester;
• said solution having an alkaline pH less than about 12.