Distilled rosin Specifications and grades RGR-10RGR-20 Appearance Light yellow solid Light yellow solid color (iron cobalt colorimetry) ≤ #2≤ #4 Softening point (℃) 77-80≥75 Acid value, mg KOH/g 152-158 ≥155 Unsaponifiable matter content (%) ≤ 10≤ 10 ash, % ≤0.0080.008 Product introduction: Distilled rosin (also called refined rosin) is made of gum rosin, using a vacuum distillation process under the protection of inert gas. Refined. The color is lighter, and the main ingredient is still more