Polymer and
Process Oils

Polymer and plastic manufacturers recognize that there’s a Sonneborn solution for them across a very broad line of products with the ability to custom formulate. These highly refined, low-volatility white mineral oils are saturated, colorless, aliphatic hydrocarbons that are chemically inert, with excellent UV stability.

Sonneborn polymer and process oils are added to plastics such as crystalline polystyrene (PS), high-impact polystyrene (HIPS), polyolefins, thermoplastic elastomers (TPE), and various other polymers to improve and control the melt flow rate of the finished polymer. These products are also employed as internal lubricants and/or external lubricants in numerous polymer formulations.

Polymer and Process Oil Products

Hydrobrite™ 1000 PO

Plastic oil with exceptional UV stability.

Hydrobrite™ 200 PO

Employed as internal and/or external lubricant in numerous polymer formulations.

Hydrobrite™ 330 PO

Colorless, tasteless and hydrophobic plastic oil offering superior UV stability.

Hydrobrite™ 380 PO

Improves and controls the melt flow rate of the finished polymer.

Hydrobrite™ 550 PO

Hydrophobic, colorless and tasteless plastic oil.

Hydrobrite™ HV

Ultra-high viscosity white mineral oil; excellent for food grade lubricant formulations.

Hydrobrite™ PVC

Cost-effective replacement for paraffin wax in rigid PVC formulations.


Most naphthenic USP heavy white mineral oil.

Plastic Oil

Useful in a variety of applications across industries.

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