Combustion properties, shelf stability and other issues are all obstacles to a near-term entry into this market. Biodegradable synthetic oils are currently available, though not widely used, and there is no concerted effort in the United States to regulate the use of mineral oils in these markets. Commercial acceptance of a properly formulated soy-based product would likely be good in each of the other areas and some commercial effort already is being directed to these markets. Current vegetable oil formulations generally are based on rapeseed oil and the lower cost of soy would be an advantage. The markets are relatively small as compared to crankcase oils, but collectively represent significant potential.
Additional research is needed to overcome technical obstacles to use in each area.
Working Fluids Worker exposure is of greater concern than biodegradability in this industrial use area. Fine mists of oil are used to continuously lubricate metal being fabricated into automobiles and other metal products. This mist can cause respiratory problems to workers and union attention has been focused on the area. Industry contacts indicate the problem is being addressed through mechanical means in the auto industry. Technical problems in other areas, such as steel rolling for food containers, will prevent soy oil entry.