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The RUSTLICK 72050 is an oil-based dielectric fluid engineered for electric discharge machining (EDM) operations. Sold in a 5-gallon pail, this fluid serves as the dielectric medium between the electrode and workpiece during EDM cutting, flushing away eroded particles and preventing arcing. It is formulated with a high flash point for safer operation in shop environments and maintains low viscosity to support consistent flushing and debris removal. Its low power factor helps sustain a stable discharge gap, which is critical for dimensional accuracy. Machinists and EDM machine operators working in job shops and production facilities are the primary users.
EDM-250 is suited for use in sinker (ram) EDM and wire EDM applications across a range of workpiece materials. Compatible material applications include aluminum, brass, bronze, copper, and ferrous metals. It is appropriate for both prototype work and production runs where consistent dielectric performance and machine cleanliness are required. The fluid meets OSHA standards and is intended for professional shop use.
Designed for use in sinker and wire EDM machines where an oil-based dielectric fluid is specified. Compatible workpiece materials include aluminum, brass, bronze, copper, and ferrous metals.
EDM dielectric fluid is serviced by qualified machine operators or maintenance technicians following the EDM equipment manufacturer's fill and filtration procedures. Before servicing the fluid reservoir, power down the EDM machine and allow all electrical components to de-energize fully. Consult the machine manufacturer's specifications for reservoir capacity and fluid change intervals. Handle and store the fluid in accordance with OSHA requirements and the product safety data sheet.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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