Synthrapol is an industrial strength, pH neutral, liquid detergent used as a prewash and afterwash for dyed or painted fabrics and as a wetting agent for fabric dyes and paints. Synthrapol has the unique property of keeping loose dye suspended during washing, thus preventing backstaining while aiding in the removal of excess color. This 3x9.5 inch package contains one 32 ounce bottle of Synthrapol. Conforms to ASTM D4236. Made in USA.