In this short course, we will first look at why solution preparation is important to product quality. Then we will look at solution mixing, including the important variables in mixing situations. A general view of the relationship of mix parameters will be developed. Measurement techniques to characterize an existing tank and agitator will be discussed. Finally, a calculation method to evaluate a new fluid in an existing tank will be shown. Then we will turn our attention to solution formulation. We will describe Hansen solubility parameters. We will show how they can be used to find answers to formulation problems. A demonstration will be given for the HSPiP approach and software to facilitate work in this area. Issues such as finding a replacement solvent, characterizing a new material, and showing how Hansen solubility parameters can be used to understand unique drying concerns will be covered.