A blend of solvents used for viscosity and drying control of Poly-Brush, Poly-Spray, Poly-Tone. Blend #R- 65-75 is recommended as the standard reducer in normal weather, 65 degrees to 75 degrees F. Thin 4 parts Poly-Tone to 1 part reducer. Gallons require hazardous material fees. Quarts and gallons must be sent UPS ground. Shelf life 4 years unopened under ideal conditions.