This series of products are made from gum rosin that have been hydrogenated. Have the character of light color, Hydrogenated Rosin TypeSBHR-XSBHR-WWItems Spec.Colorthe standard glass color piece of rosinXWW Lovibond colour maxYellow1220Red1.42.1Softening Point(R&B), min7271Acid Value,mgKOH/g min162160Abietic acid,% max2.002.50Dehydroabietic acid, % max1010