BS-150 Base Oil

Base Oil BS 150 is defined as a base oil at the upper end of the specifications for Grade I base oils. Bright stock base oils are high viscosity oils produced at Group I base oil refineries by atmospheric and vacuum distillation, extracting and dewaxing solvents from residual oils and hydro finishing.

It has viscosity 28.0-33.5 cSt at 100C and 461-597 cSt at 40C.

Most of Group III and Group II refineries have no possibility to produce such heavy grades as brightstock, only few of them can make base oils with viscosity @ 100C above 20 cSt, which creates a high demand for this product.


  • Engine oils
  • Transmission fluids
  • Gear oils
  • Metalworking fluids
  • Greases
  • Hydraulic oils
  • Transformer oils

Packing: Brightstock base oils can be delivered in flexi-containers, iso-tank, IBCs in 20-feet containers or bulk vessels for export, or trucks inside Europe. In CIS countries the product is available in rail tank cars. For colder destinations we suggest to delivery brightstock in iso-tanks with heating as the product become too viscous with temperature close to 0C.

Origin: EU, Central Asia
Hazard class: BS 150 base oil is classified as not dangerous goods
CAS Number: 64742-54-7
EC Number: 265-157-1

DYM Resources is buying BS-150 base oils in bulk and selling it worldwide. Our geography covers Europe, Latin America, Africa, Asia – we’re delivering the product to Argentina, Brazil, Colombia, Turkey, Vietmnam, China and many other countries worldwide.

To choose a particular product for your application or find out BS-150 base oils price please contact our sales department:

Base Oil BS-150 Specification

Parameters Units Guaranteed Typical
Appearance C&B C&B
Color ASTM Max 0,5 L0,5
Kinematic viscosity at 40 °C mm2/s 445,5
Kinematic viscosity at 100 °C mm2/s 33,5 – 35,5 33,8
Viscosity index Min 105 111
Pour point °C Max -15 -18
Flash point °C Min 250 262
Sulfur wtppm Max 100 3,4
Aromatics % 0,0


Fill the form to make a request

    Request information
    Contact details
    By clicking "Send request" user agrees to be contacted at the number or e-mail provided with more information or offers. There are cases when we are unable to provide a reply if we find the content of inquiry irrelevant.