... odor,light color, modified gum rosin pentaerythritol esters. Pentaerythritol Ester of Gum Rosin Description: This series are granular form,low odor ... tackifying resins which can be used to formulate various kinds of adhesives. Specification:TypeBL-100BL-100L Softening poing(R&B), ... Acid number,mgKOH/g,max2020 Specific gravity(@20)1.071.07 Melt viscosity(@150),CPS1000~20001000~2000 Ash(as weight),%,max0 ...