Chempol Products

CHEMPOL P20 OCP Viscosity Index Improver – OCP-Olefin Co-polymer

A solid, pellet form, highly stable olefin co-polymer with narrow molecular weight distribution, intended for use as viscosity index improver (V II) in mineral oil based automotive crank case lubricants.

Description

Property Value
Appearance White pellets
Density (g/cc), ASTM D4052 0.862
Kinematic Viscosity 10% SN150/100(cSt), ASTM D445 2100
Pour Point 1% SN150 + 0.3% PPD (°C), ASTM D97 -24
Shear Stability Index (SSI), ASTM D6002 45
Ash Content (%), ASTM D1416 <0.09
Ethylene Content (%) 48
Mooney Viscosity ML 1+4 (100°C), MU 65

Characteristics

  • Pellet form
  • High thickening power
  • Good viscosity index improver (VII)
  • Very good pour point characteristics

Typical Applications

Designed to be used as a viscosity index improver (VII) and viscosity modifier/thickener in mineral oil based automotive crank case lubricants and industrial lubricants.

Packaging of  Viscosity Index Improver (Ethylene – Propylene – Copolymer)

Available in 25kg bag

Dissolving Method & Viscosity Levels

Polymers should be dissolved under high agitation in oil at 100°C – 160°C for 3-6 hours until all solids have been dissolved. Treat rates of 6-10% will be required depending upon the viscosity grade required and the base oil used. Use with suitable PPD. Consult the CHEMPOL technical department for specific recommendations.

  • 10% of CHEMPOL P25 in Base Oil SN500 produces a Viscosity of 1900 – 2000cst @ 100°C.
  • 11.5% of CHEMPOL P25 in Base Oil SN 150 produces a Viscosity of 1800 – 1900 Cst @ 100°C.

It is generally recommended to make Liquid VI with SN150 Base Oil for a better low pour point while formulating Motor Oils. The index of the oil will be increased based on the grade of the oil used.

Dissolving time
Approx. 3 -6 hours @ 120°C.

Safety, Handling and Storage

Wear a suitable dust mask & gloves when handling polymers. Avoid storing pellet-type polymers >30°C for prolonged periods, and avoid direct sunlight.