A good solvent for paraffin wax that does not dissolve EVA (ethylene-vinyl acetate) is mineral spirits. Mineral spirits, also known as white spirit or paint thinner, is commonly used as a solvent for various types of waxes and can effectively dissolve paraffin wax without affecting EVA. It is important to note that when working with solvents, proper safety precautions should be followed, such as working in a well-ventilated area and wearing protective gloves.