Chempol Products

CHEMPOL 5550 Viscosity Index Improver (Bale Form)


Chempol 5550 is an Olefin Copolymer (OCP) Viscosity Index Improver (VII) in solid form for formulating monograde and multigrade crankcase and various industrial lubricants. Chempol 5550 has medium Shear Stability when blended with suitable base oils. Treat rates depend upon application and performance requirements.

Product: Synthetic Olefin Co-Polymer OCP.

Chemical Name: Ethylene Propylene Co-Polymer.


Typical Characteristics

Property Value
Appearance White Bale
Density @ 15.6 °C, Kg/m3 0.87
Volatiles Content wt% 0.2 max
Ash Content 0.4 max
MFI (190 °C, 216 Kg) (g/10 min) 8.3
Shear Stability Index (SSI) Max 24
Ethylene wt% 52
Propylene wt% 48
YI % 16
KV (100 C) cSt 10(1% wt in SN-150)


  • High thickening power
  • Good oxidative stability
  • Excellent shear stability
  • Good viscosity index improver (VII)
  • Superior low-temperature behaviour


A cardboard box of 500 kg containing 25 bales wrapped with polyethylene film (1070 x 1270 x h1050 mm).

Storage, Handling & Toxicity

When handling this product, a Maximum temperature of 90 °C should be observed for storage and unloading. However, it is strongly recommended that for long-term storage the temperature should not exceed 70 °C. Blending temperature -120°C to 140°C Maximum skin Temperature -200°C.