Doverphos 7 is phenyl diisodecyl phosphite (PDDP). It is the highest molecular weight and lowest phosphorus content liquid alkyl-aryl phosphite. Doverphos 7 is an effective liquid phosphite heat stabilizer for polyurethanes, coatings, ABS, and polycarbonates. Typical use levels range from 0.1 to 3.0% for most applications. Doverphos 7 can be used in rigid and plasticized PVC applications to give brighter, more consistent colors. Use levels in PVC range from 0.25 to 1.00%.Information provided by DoverChem |