EcoSpark 105

Dielectric EcoSpark 105 is a blended aliphatic hydrocarbon fluid of high purity based on mineral oils for use in EDM machines. It was especially developed for use in applications where a minimum dielectric flashpoint of 100°C is required as a security against fire risks.

Dielectric EcoSpark 105 is made of several mineral distillations (hydrocrack oils) forming an oil of low viscosity, high dielectric strength and a very low aromatic content below 0,1 %vol. All components are carefully selected for purity, low toxicity, low odour and lack of irritation. Due to its high evaporation temperature of 235°C the gases produced as a by-product of EDMing are considerably reduced.

Dielectric EcoSpark 105 is an odourless and colourless fluid. It has excellent cooling and flushing properties because of its low viscosity of 3,3 mm²/s at 20°C.
Further, it has an excellent filterability through all types of EDM filter systems. Thus it ensures an efficient sparking process, combining high stock removal rates with low electrode wear. This guarantees a wide operating range from finishing to heavy roughing using high generator output.

Technical facts


Dichte bei +15 °C [g/cm³]


ASTM D 7042

Kin. viscosity at +20 °C [mm²/s]


ASTM D 7042

Kin. viscosity at +40 °C [mm²/s]


ASTM D 7042

Flashpoint [°C]



Aromatic content (Weight %)

< 0,1

DIN 51 378

In our brochure you will find all information about EcoSpark 105, the longstanding development as well as the advantages of the product.

Download the brochure of EcoSpark 105


Phone: +49 711 168 63-0
Fax: +49 711 168 63-3500
E-mail: hutec(at)

company field
more elements



Thanks for visiting us at Forge Fair

[Translate to english:] Stephan Hecht and Philipp Storr

A big THANK YOU to all who visited us at our booth at Forge Fair 2017.

oelheld U.S. - Online Shop

oelheld offers you the possibility to order your grinding oil or dilelectric in our new online shop.