Disruptive surface
finishing technology

DLyte is a surface finishing system for metal parts requiring high performance or superior finishing. DLyte equipment uses the novel DryLyte Technology which brings significant technical advantages over competing technologies, such as abrasive finishing, robotic grinding and polishing, mechanical brush and grinding systems. In addition, it achieves a quality equivalent to manual grinding and polishing automated, fast and cost-effectively.

Unlike traditional surface finishing systems, the DLyte system obtains consistent finish, avoiding any marks on the surface or patterns and is able to process complex geometries without generating micro scratches on the surface and preserving the geometry. DLyte respects the tolerances of the piece, delivering a mirror finish.

The media used is formed by a set of spheres of non-conductive polymeric material that is capable of retaining liquid electrolyte without it being able to escape. When contacting a surface, the sphere can only contact the peaks of roughness, and it is only at these contact points that the oxidation and removal of material occurs.

In this way, the finishing is highly selective, and is better able to maintain the geometry of the piece. This selectivity allows dry electropolishing to achieve the same roughness reduction as liquid electropolishing while removing less metal overall.

“The process extracts the material only from the peaks
of the roughness,  it does not round the edges but
penetrates the internal cavities of the piece to which
cannot be accessed mechanically.”

Comparison vs liquid electropolishing
and abrasive finishing


+ All surfaces contact liquid
+ General oxidation
+ Low discrimination


+ Spheres contact on roughness peaks
+ Localized oxidation
+ Selective removal of metal
+ Geometry preservation
+ Improved corrosion resistance


+ Plastic deformation of roughness peaks
+ Inclusion of broken abrasive
+ No improved resistance to corrosion
+ Rounding of peaks and geometry harm

The DryLyte Technology offers a wide range of finishing media. The consumables, designed and developed in our test lab, allow us to precisely meet our customers’ requirements.

01. Homogeneous results

DLyte achieves homogeneous results across the surface and eliminates micro scratches, as opposed to abrasive polishing. The system works efficiently at a micro and macroscopic level.

02. Geometry preservation

Respects the tolerances and preserves the initial shape, even the edges, guaranteeing the most precise result. It does not round the edges as there is no mechanical abrasion of the surface.

03. Best-in-class surface roughness

Reduces the roughness over 80% avoiding undesired effects. Liquid electropolishing is not able to reduce the roughness more than 50% without generating side effects like orange peel or pitting.

04. Low material removal

Removes material only from roughness peaks as the diameter of the particles is bigger than the roughness profile. It penetrates internal cavities that cannot be accessed mechanically.

05. Consistent repeatability

The DryLyte Technology ensures stable results among various batches along the electrolyte media lifespan. There is no physical wear, as would typically occur with abrasive particles.

06. Enhances negative surface skewness

DLyte increases the surface bearing contact area allowing uniform lubricant film distribution and improving the bearing ratio and reducing the friction between the pieces.

07. Improve the corrosion resistance

Reduces wear and improves fracture and fatigue strength, while improving the surface quality of metal parts. It also removes embedded free iron, contaminants and heat tint or oxide scale.

08. Biocompatibility proven

Uses only polymer particles with acids for surface improvement. It ensures that the parts meet all the appropriate requirements to pass a risk-benefit analysis evaluating biocompatibility and toxicity.

09. Avoids grinding texture patterns

This is the only technology that allows to remove roughness and improve the corrosion resistance of the metal pieces while reducing the number of processes required in the manufacturing process.

DLyte solutions consist of three different
typologies based on DryLyte technology,
divided into two types of systems.

Immersion systems

Surface finishing processes by immersion are carried out by placing the metal pieces to be treated in a working bowl or tank filled with electrolytic media, consisting of solid bodies that completely cover the parts. The consumable material chosen may be of different types, depending on the results sought. For this purpose, different kinds of consumable are used: dry polymeric particles without any additive or polymer particles mixed with a moderator liquid that enhances final brightness.

The consumable reduces the surface roughness without impacting on the original geometry, since the metal removal is based on ion transport instead of abrasion of the surface. DLyte’s equipment uses electricity with specific electrical parameters and moves the parts fixed by fixtures inside a bowl full of media. Every time an electrolyte particle impacts the metal surface, there is an ion transport that removes irregularities from the peaks of the surface.


Dry surface finishing is a patented technology for grinding and polishing metals by ion transport using free solid bodies. This system is based on solid media with no liquid added.

It works by combining the electrical flow created by the high-precision rectifier with the movement of the pieces through the electropolishing media. This results in an ion exchange, removing material only from the peaks of roughness.

How it Works

It is based on dry solid particles for immersion systems. These bodies collide with each other, starting an ion exchange and removing the outer layer of the metal part, to eliminate imperfections on the metal piece.

Dry Surface Finishing’s Benefits

+  Faster surface finishing processes.
+  Easiest to manage.
+  For simple geometries.

Dry Suspension

Dry Suspension is a revolutionary solution based on a new electrolyte that combines polymer particles and a moderator liquid, especially designed to improve the results of conventional dry electropolishing processes.

How it Works

The Dry Suspension consumable consists in a mixture of solid particles and liquid for immersion systems. These free bodies collide into each other, starting an electrolysis process that eliminates imperfections on the surface. The moderator liquid improves the final gloss of the part.

Dry Surface Finishing’s Benefits

+  For complex geometries.
+  Shiniest results.
+  Part protected by the liquid: minimizes undesired
oxidation and reduces the contact surface.

Projection systems

The Dry Projection technology, released to be used in the DLyte eBlast machine, is a new solution that provides a stream of solid-electrolyte particles propelled by a moderator liquid media to improve the surface quality. The media is projected towards a localized area of the piece.

In comparison to liquid electropolishing, this moderator liquid is not directly involved in the surface finishing process. Its main function is carrying the particles; its specifically developed composition contributes to maintain the connectivity and conductivity between particles during the process. Additionally, this liquid creates a protective layer over the metal surface, accumulating especially in roughness valleys, thus protecting the surface from pitting.


This new projected electropolishing opens up a wide range of possibilities for the treatment of metal surfaces with non-homogeneous roughness or complex geometries (the current main obstacle of AM parts), as well as large, heavy pieces. This feature can provide finishing solutions in sectors such as 3D printing, automobile industry, railway and specially injection molds.

How it works

The Dry Suspension system is based on a mixture of solid particles and liquid for projection systems.
Particles collide with each other through the liquid emulsion which, when agitated, becomes conductive.

Dry suspension’s benefits

+  Higher adaptability and customization.
+  For complex geometries.
+  Part protected by the liquid.

How to know which
technology meets your needs

Our surface finishing experts provide guidance about the technology and system that better suit to your surface finishing challenge. Those are some of the key factors which need to be taken into account for a successful choice:

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