What is an electrostatic spray gun for liquid coating?

An electrostatic spray gun applies a high-voltage charge to paint particles as they leave the gun — the charged particles are attracted to the grounded workpiece, producing a wrap-around effect that coats edges and recesses, and dramatically increasing transfer efficiency to 70–85%.

What transfer efficiency does electrostatic liquid coating achieve?

Electrostatic liquid coating guns typically achieve 70–85% transfer efficiency compared to 25–40% for conventional guns — reducing paint consumption, overspray, and VOC emissions significantly.

What is the difference between DC and EC variants of Dürr electrostatic guns?

DC (direct charge) guns charge the fluid directly, suited to conductive materials. EC (external charge) guns charge the atomised spray externally, suited to a wider range of coating materials including waterborne and solvent-based paints.

Dürr — Liquid Coating Gun

EcoGun AS MAN DC & EC

Charged particles. Wrap-around coverage.

Electrostatic manual spray guns that charge atomised paint particles — wrapping them around the part surface electrostatically and significantly reducing overspray through electrostatic attraction. DC for solvent-based, EC for water-based formulations.

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Dürr EcoGun AS MAN DC/EC · electrostatic spray gun

Why this product

Overspray is paint you paid for that never reached the part.

In conventional spray, a significant fraction of atomised paint misses the part and ends up in the exhaust. Electrostatic charging reverses this — charged particles are attracted to the grounded part surface, wrapping around edges and reverse faces. Material savings of 20–40% are typical compared to conventional air spray on the same part.

Electrostatic charging wraps atomised paint around the part — coating reverse faces, edges, and recesses
Significant material savings through reduced overspray vs conventional air spray
DC (Direct Charge) variant: internal electrode for solvent-based paints — maximum charging efficiency
EC (External Charge) variant: external charging electrode for water-based paints — avoids current issues with conductive formulations
Suitable for automotive, general industry, and consumer goods production lines
Lowers extraction system load — less overspray means less paint mist burden on filters

Models & Configurations

DC for solvent-based, EC for water-based

Dürr EcoGun AS MAN DC · direct charge electrostatic gun

Direct Charge — Solvent-Based

Maximum electrostatic efficiency for solvent paints.

The DC (Direct Charge) variant uses an internal high-voltage electrode to charge the atomised paint particles directly. Optimised for solvent-based formulations where the paint's electrical resistivity allows direct contact charging. Maximum wrap-around effect on grounded parts.

Charging methodDirect charge — internal electrode
Paint compatibilitySolvent-based paints (correct resistivity range)
Best forAutomotive, general industrial, consumer goods — solvent-based
Wrap-aroundMaximum electrostatic attraction on grounded parts

Technical data

Full specifications

DC variantEcoGun AS MAN DC — internal direct charge electrode for solvent-based paints

EC variantEcoGun AS MAN EC — external charge electrode for water-based formulations

Overspray reductionSignificant vs conventional air spray — electrostatic wrap-around effect

ApplicationsAutomotive, general industrial, consumer goods production lines

Supplied byOptiFinish — authorised Dürr distributor, India

Where it's used

Applications & use cases

Automotive body and component painting
General industrial manufacturing where material savings are a KPI
Consumer goods and appliance painting
Water-based paint lines for low-VOC compliance
Operations transitioning from solvent-based to water-based coatings
Any liquid coating application where overspray reduction is a priority

Automotive body & component painting1 / 6

Works with

Compatibility & integration

OptiFinish liquid spray boothDürr EcoPump fluid supply packagesSolvent-based paints (DC variant)Water-based paints (EC variant)Dürr EcoDose 2K / 3K (for two-component systems)

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