Trisodium Phosphate: A cleaning compound based on an alkaline material.

TSP is an abbreviation for trisodium phosphate. Trisodium phosphate, or TSP, is an alkaline substance used as a cleaning compound for walls. It is a degreaser and heavy-duty wall grime cleaner. Environmental laws prohibit its sale in some regions. Because it contains phosphate, a fertilizer, it encourages the growth of mildew and mold. TSP substitutes are now available to consumers.

Tri Sodium Phosphate commonly used to remove surface contaminates from flooring.

A powerful cleaning compound that is mixed with water and used for scrubbing walls and ceilings to prepare for painting.

Triple Super-Phosphate

Tri-sodium phosphate, a cleaning agent. After the TSP has been dissolved in water, the solution is used in surface preparation. (After cleaning with TSP, the surface should be rinsed.)