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Petroleum based hydraulics are problematic in terms of environmental hazards, flammability, and cost. The Submarine External Hydraulic System (SEHS) is especially susceptible to problems. A leak in this system releases hydraulic fluid directly into the ocean.

TRI Austin developed new water based hydraulic fluid formulations and performed testing using SEHS system components. New environmentally friendly high performance water based hydraulic fluids were formulated and optimized. A product specification was prepared, and the best performing water based hydraulic fluids were delivered to NAVSEA for further testing and evaluation.

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