The customer is a leading producer of power solutions that manufactures engines, generators, and other machine components. They sought a reliable inhibited propylene glycol for use in their engine flushing process. To clean the system without damaging metal components, the glycol solution needed to provide excellent corrosion protection during system flushing while simultaneously being compatible with a range of metals and engine materials. The manufacturer turned to their local DuBois technical team for support, hoping to maintain operational reliability and quality while reducing overall operating costs.
The DuBois technical team recommended Du-Frost, our innovative inhibited propylene glycol heat transfer solution. Du-Frost is formulated with a high-quality inhibition package that is safe on all metals, excluding aluminum. The low acute toxicity of propylene glycol makes it a safer-to-use alternative to toxic ethylene glycol, while a phosphate-based inhibitor controls corrosion of ferrous and non-ferrous “yellow” metal surfaces. While commonly used as a heat transfer fluid in closed-loop and cooling systems, its balanced inhibitor package and material compatibility made Du-Frost well suited for the customer’s flushing process.
Du-Frost was introduced into the manufacturer’s existing flushing procedures. At a 90% glycol dilution ratio, Du-Frost was utilized to flush a 95L engine after it ran through the test cells. After this switch, it was noted that the engine manufacturer maintained the same level of corrosion protection as with their previous fluid while achieving measurable cost savings. With Du-Frost, the customer was on track to save over $13,000 a year, including receiving better lead times on shipping. Du-Frost delivered reliable corrosion protection at a lower cost, meeting the manufacturer’s process requirements and financial goals. Its formulation is built on proven heat transfer fluid technology, providing dependable performance in the engine flushing process and demonstrating that high-quality protection and cost savings can go hand in hand. The DuBois dedication to product quality, timely delivery, and technical expertise ensured the customer received consistent value throughout the transition. This reliability in both product quality and supply reinforced the manufacturer’s confidence in partnering with DuBois. The team continues to be pleased with the performance of Du-Frost and looks forward to our continued partnership.
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