Bright Stock
Bright Stock (BS150 / BS90)
High viscosity residual base oil for gear oils and greases.
01 Overview
Bright stock is a high-viscosity residual base oil produced by deasphalting and solvent refining of vacuum residue. It provides the film strength and tackiness that lighter neutrals cannot, and remains essential in heavy gear oils, marine cylinder oils and grease manufacture.
02 Types we supply
Each entry below is a grade — a specific version of this product, made to its own recipe for a particular use. If you are not sure which one you need, tell us what you are making and we will advise.
- BS150 (SN650)
- BS90
03 Typical specification
These figures are approximate and differ slightly between producers. The binding numbers are the ones on the certificate of analysis for your actual shipment, which we send with every quotation.
04 Applications
- Heavy duty industrial gear oils
- Marine cylinder and system oils
- Grease manufacture
- Rubber process oils
- Metal rolling and drawing oils
- Adhesive and tackifier formulations
05 Industries served
06 Packaging options
- 180 / 210 kg steel drums
- Flexitank (20–22 MT)
- ISO tank
- Bulk
07 Supply & export note
Bright stock is highly viscous and requires heating for drum discharge in cool conditions. We provide handling guidance with the shipment and factor ambient temperature at destination into the packing recommendation.