Rubber Processing Oil



Rubbers both synthetic and natural, are commercially used to convert into the fi nal products, from a toy to the tyre of a vehicle. Rubber Process Oils are used during the processing and production of rubber compounds. These help in improving the dispersion of fi llers and fl ow characteristics of the compound during further processing. Depending on the type of rubber and the end product applications, various types of rubber process oils are selected. The range of IPOL Rubber Process Oils can be broadly divided into
– 1. Aromatic types        2. Naphthenic types         3. Paraffi nic types

- AROMATIC OILS

The primary characteristics of aromatic hydrocarbons is the presence of the double bonded mix ring carbon structure. Aromatic extracts procured from selected refi neries and suitably blended to meet stringent specifi cations, are used for compounding batches to manufacture Tyres, Tubes, Hoses, Calender sheets, etc. Typical inspections of some of the IPOL Aromatic Grades are as follows -

Characteristics Test Method RPO 701 RPO 702 RPO 703 RPO 704
Appearance Visual --- --- ---
Colour ASTM D 1500 Greenish Greenish Greenish Greenish
Kinematic Viscosity at 40º C in Cst ASTM D 445 --- --- --- 150
Kinematic Viscosity at 100º C in cSt ASTM D 445 17-37 8-12 40-60 ---
Flash Point (COC) ºC, minimum ASTM D 92 220 200 220 208
Aniline Point ºC ASTM D 611 30-50 35-55 30-50 45-60
Loss On Heating % 0.5 max ASTM D-6 1.01-1.05 ASTM D-70
Pour Point ºC, maximum ASTM D 97 24 21 24 6
Flash Point ºC 250 min ASTM D-92 1.01-1.05 ASTM D-70
Carbon Type Analysis ASTM D 2140
CA % 42 36 44 35
CN % 22 24 20 23
CP % 36 40 36 42
Acidity mgms KOH/gm Oil, maximum ASTM D 974 0.5 0.5 0.5 0.2
Volatile matter, % at 150º C for 1 Hour ASTM D 974 (IS:1448 P 64) 0.2 0.3 0.5 1.3
Applications Tyres, Retread Rubber,
Moulded
& Extruded Products
Moulded, Calendered
& Extruded Products,
Flooring & Rubber Sheets

- NAPHTHENIC OILS

Naphthens are a class of hydrocarbons also referred to as ‘cycloparaffi ns’. Though their structure is similar to the aromatic ring, these are single bonded thus having a stable structure. Several such hydrocarbon rings may be linked indicating a variety of available grades. Their unique colour stability, solubility and good thermal stability makes them ideal for moulded articles, slippers, LPG tubes, fl oor tiles, etc. Typical inspections of some of the IPOL Naphthenic oils are as follows -

Characteristics Test Method RPO 501 RPO 507 L RPO 507 D
Appearance Visual Bright & Clear Bright & Clear Bright & Clear
Colour ASTM D 1500 1.5-2.0 1.5-2.0 5.0 max
Kinematic Viscosity at 45º C in Cst ASTM D 445 21-25 27-37 20-24
Kinematic Viscosity at 100º C in cSt ASTM D 445 --- --- ---
Flash Point (COC) ºC, minimum ASTM D 92 160 195 160
Aniline Point ºC ASTM D 611 75-82 76-82 78-82
Pour Point ºC, maximum ASTM D 97 0 0 0
Carbon Type Analysis ASTM D 2140
CA % 14 14 17
CN % 20 22 23
CP % 66 64 60
Acidity mgms KOH/gm Oil, maximum ASTM D 974 0.1 0.1 0.1
Volatile matter, % at 150º C for 1 Hour ASTM D 974 (IS:1448 P 64) 2.1 1.3 2
Compatibility NR, SBR, EPDM & IIR NR, SBR, PBR, EPDM & IIR NR, SBR, PBR, EPDM & IIR
Applications Extruded & Moulded
Articles, Micro, Hawai Sheets,
Shoe Soles, Automotive Tubes
Hawai Slippers, Micro Cellular &
Hawai Sheet,Garden Hose, Firefighting Hose, LPG Tubes, Floor Tiles
Micro & Hawai Sheet,Automotive Tubes