SPEL SPARK Oils are premium quality low viscosity mineral oil, particularly suited for use as the working fluid Electrical-Discharge Machining (EDM), also called Spark Erossion Machining. These oils have the ability to provide uniform insulation and then to permit controlled electrical discharge at the breakdown voltage. SPEL SPARK oil also has the proper balance of viscosity, volatility, oxidation stability, heat transfer characteristics and low odour and toxicity. These properties enable to function as an insulator between tool and work piece, a spark conductor, a coolant and a flushing medium for chip removal.

Following table depicts various test parameters of the Spark erosion fluid :

These are typical figures and do not constitute a specification.