Fill a plastic bucket with enough hot water to cover your fabric. Add ¼ teaspoon (1.25 ml) of Synthrapol per gallon of water. Add your cotton fabric and swish it around for 5 minutes. Squeeze out excess water from your fabric before adding it to the dye bath.
What is Synthrapol and why is it used?
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.
Can you put Synthrapol in the washing machine?
Put it all in the washer with a 1⁄2 teaspoon to 1 Tablespoon of Synthrapol depending on the number of yards of fabric. DO NOT USE TOO MUCH AS IT WILL FOAM AND THE MACHINE WILL STOP AUTOMATICALLY.