The pouch I had indicated:
To prepare for adding, it is recommended to use distilled water distilled water. Bring 2 cups to boiling and stir in 1 tsp. per gallon of Sparkolloid. Stir frequently, maintain the mixture at about 180*F. Sparkolloid contains some filter aids that will not dissolve. These particles will be adequately distributed by constant stirring as it is being heated. Agitating the mixture constantly is important. When all the globulues of clarifier have gone into suspension and the mixture is smooth and creamy (about 15 minutes), Slowly stir the Hot Sparkolloid into the wine to be clarified. Sparkolloid produces very fine lees, and the lees settle out of the wine slowly. Consequently, this material should not be used less than 30 days before bottling time, or small amounts may precipitate later in the bottles. Many winemakers allow for an eight-week settling time just to be on the safe side.