Unlike typical corona treating systems, the suppressed spark system doesn't use high frequency operating at 50/60HZ. It is far safer for employees in a plant operation, and close proximity to an electrode is not required.


Evaluation Factors

Corona Treaters

Total uniform 360 degree treatment of the three dimensional parts.

Surface Coverage

Treatment only where properly adjusted corona discharge comes in contact with the part.

No heat damage to the part being treated. Little or no heat added to the part.

Parts Damage

High temperature corona can melt, burn, disfigure the part.

Parallel surface treatment of the part with the electrical discharge, no damage to the part surface.

Overtreatment Potential

Perpendicular surface treatment of the parts, with the electrical discharge, pin holes can occur.

No personnel safety hazards with high voltage. Less .001 amps in the electrical discharge.


High power and current.

No set-up when switching parts to be treated.


Extensive set-up required when changing parts to be treated as well as changing configured electrodes & conforming ground.

Simple installation, only electrical and 6” exhaust hook up needed, no fixturing.


Fixturing required to insure corona discharge is in contact with area needing treatment. Separate electrodes required for each individual treating area & Grounds.

Oriented or bulk feed, in line or off line operation.

Material Feed

Oriented parts treating only.

Low frequency, 50-60 HZ operation.


High frequency electrical discharge, possible interference with electronic/PLC/Computer operation, possible personnel hazard with those personnel wearing pace makers.

No electrodes to frequently replace or burn out.


Electrodes have limited life span and must be replaced on a periodic basis.

Self contained humidity control, ambient humidity has no effect on treatment.


Ambient humidity conditions can effect the quality of the treatment.

Efficient operation, low power consumption.

Power Consumption

High power consumption with multiple configured electrodes.

More Comparisons

Click on the links below to see how LectroTreat compares to other popular surface treating technology across a number of popular factors.

  • Plasma Treating

    Plasma Treating vs. LectroTreat

    Learn More

  • Corona Treating

    Corona Treating vs. LectroTreat

    Learn More

  • Flame Treating

    Flame Treating vs. LectroTreat

    Learn More