Doverphos 4 is trisnonylphenyl phosphite (TNPP). It is an aryl phosphite with a high molecular weight and low phosphorus content. It is an effective liquid phosphite heat stabilizer for a wide variety of applications, including: polyolefin, acrylics, adhesives, elastomers, nylon, polycarbonate, polyurethanes, polystyrene, PVC, coatings, ABS, and polyethylene terephthalate. Typical use levels range from 0.05 to 3.00% for most applications.Information provided by DoverChem |