Shell Catenex T 121 is a virtually colourless, sulphur-free, highly refined paraffinic process oil offering excellent biodegradability, low volatility, and high stability for demanding industrial and manufacturing applications.
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Shell Catenex T 121

Shell Catenex T 121 is a virtually colourless, sulphur-free, highly refined paraffinic process oil offering excellent biodegradability, low volatility, and high stability for demanding industrial and manufacturing applications.

Category:

Shell Catenex T 121

Ultra-pure paraffinic process oil for high-spec industrial applications

  • Hydrotreated and highly saturated; free of aromatics and polar compounds

  • Virtually colourless (ASTM <0.5, Saybolt +30), odourless formulation

  • Biodegradable: exceeds 60% in OECD 301B after 28 days

  • Low sulphur content (<0.0005%) and PCA content <3%

  • Excellent oxidative and colour stability

  • Ideal for rubber, elastomers, plastics, adhesives, and general manufacturing

  • High viscosity index (116) and balanced flow profile

Global Product Code: 001B8316



Application:

Shell Catenex T 121 is a hydrotreated paraffinic process oil, virtually colourless, sulphur-free, and odourless. Designed for demanding industrial applications, it offers high purity, superior biodegradability, and thermal stability. Its highly saturated structure and refined composition make it ideal for use in rubber, elastomer, plastic, adhesive, and other sensitive processing environments.

Performance Features & Benefits:

  • Ultra High Purity: Completely free of aromatics and polar compounds, with sulphur content <0.0005%.
  • Excellent Biodegradability: Exceeds 60% degradation in OECD 301B test within 28 days.
  • Thermal & Oxidative Stability: High flash point (220 °C), low pour point (-18 °C), and VGC of 0.791.
  • Visually & Chemically Stable: Colourless (ASTM <0.5 / Saybolt +30), odourless, and highly consistent under operational conditions.
  • High Viscosity Index: VI of 116 supports flow performance across a wide temperature range.

Main Application Areas:

  • Rubber and elastomer processing
  • Plastic and adhesive manufacturing
  • Industrial process formulations requiring odourless, colour-stable oils

Specifications & Approvals:

  • Exceeds biodegradability requirements per OECD 301B
  • Produced via Shell hydrotreated refining process
  • PCA <3% (IP 346)

Environmental & Safety Information:

  • Shell Catenex T 121 is not expected to present significant health or safety hazards under proper use conditions.
  • Use protective gloves with used oil. Wash skin with soap and water after contact.
  • Do not dispose into drains, water, or soil. Used oil should be returned to an authorised collection point.
  • Safety Data Sheet (SDS) available via inquiry

Technical Specifications:

Property Typical Value Method
Colour (ASTM) <0.5 ASTM D1500
Colour (Saybolt) +30 DIN 51411
Density @ 15°C 844 kg/m³ ISO 12185
Refractive Index @ 20°C 1.464 ASTM D1218
Flash Point (COC) 220 °C ISO 2592
Pour Point -18 °C ISO 3016
Kinematic Viscosity @ 20°C 49 mm²/s ISO 3104
Kinematic Viscosity @ 40°C 21 mm²/s ISO 3104
Kinematic Viscosity @ 100°C 4.3 mm²/s ISO 3104
Dynamic Viscosity @ 20°C 41 mPa·s Calculated
Viscosity Index 116 DIN ISO 2909
Carbon Type Distribution — Aromatic (C/A) 0% DIN 51378 / ASTM D2140 mod.
Carbon Type Distribution — Naphthenic (C/N) 28% DIN 51378 / ASTM D2140 mod.
Carbon Type Distribution — Paraffinic (C/P) 72% DIN 51378 / ASTM D2140 mod.
Refractive Intercept 1.043 DIN 51378
Viscosity Gravity Constant (VGC) 0.791 DIN 51378
Sulphur Content (X-ray) <0.0005% m/m ISO 14596
PCA Content (DMSO Method) <3.0% m/m IP 346

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