A hydrotreated, low-aromatic mineral spirit — often sold as OMS or under the Gamsol name — refined to remove the odor and aromatic content of standard mineral spirits.
Odorless mineral spirits (OMS), sometimes sold under the trade name Gamsol, are a hydrotreated petroleum distillate refined to strip out the aromatic hydrocarbons responsible for the sharp odor and higher toxicity of standard mineral spirits. The result is a mild-odor, slower-evaporating solvent that's gentler to work with indoors.
Because OMS is a mixture rather than a single compound, its exact boiling range and composition can vary slightly by refining batch — Superior Chemical Co. sources consistent, low-aromatic lots suited for professional and industrial use.