PhosflexTM 390


PhosflexTM 390

Chemical Name:
Isodecyl diphenyl phosphate


CAS Number:

General & Use:

PhosflexTM 390 is isodecyl diphenyl phosphate made from synthetic feedstocks. It is a highly efficient plasticizer for PVC, with very good low temperature flexibility, and excellent solvating properties for fast fusion. One of the unique characteristics of PhosflexTM 390 is its ability to reduce flammability while also reducing smoke. Typically when flame retardants are used, the combustion efficiency of the compound is decreased and as a result, smoke (incomplete combustion particles and gases) increase.

PhosflexTM 390 does both exceeding well in many types of polymer systems, especially flexible vinyl and vinyl alloys. PhosflexTM 390 has excellent compatibility in PVC and other plastics.

Formulated correctly, this product performs well in vinyl composites for outdoor applications where exposure to UV irradiation and weathering is critical. PhosflexTM 390 has been found useful in FR foamed vinyl and vinyl alloys (PVC/nitrile rubber), calendared sheet goods, vinyl wire and cable and outdoor PVC applications. In certain elastomers, Phosflex® 390 can be useful as a solvator to improve the tactile feel of the rubber composites.



Typical Properties:


Physical Appearance
clear transparent liquid

Phosphorus Content (Wt.%)

Density @ 20°C (Kg/m³ )

Viscosity @ 25°C (mPa.s)

Acidity (mg KOH/g)

Water Content (Wt.%)

Color APHA

Thermogravimetric Analysis (10°C/min, air)


Weight Loss, % 0C
1 204
5 221
10 234



Available in bulk tank trucks, isocontainers, 2,300 lb totes, and 480 lb drums.

Please note that the values indicated do not constitute specification limits. To obtain current specifications, refer to your local Sales Office/Representative or ICL-IP Head Office at address herein.

Product Documents

These documents are available only to register users. To view these documents please register to the site.

Business Unit