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What is Plasma Surface Treatment?

Relyon Plasma surface treatment products improve adhesion and wetting of surfaces which are otherwise difficult to bond or print on. Plasma surface treatment is both highly efficient and environmentally friendly, and the bulk properties of the treated part are not altered. The surface does not suffer marks or discolouration.

For more information on how plasma surface treatment can improve bonding, watch our video on YouTube.

The Piezobrush PZ2 introduces the benefits of plasma surface treatment into a convenient and lightweight handheld format, or in a semi-automatable or automatable robot mountable format (see Piezobrush PZ2-i below). Using Piezoelectric Direct Discharge (PDD®) Technology, which has been specially developed by Relyon Plasma, the device transforms low input voltage into high electric field strengths, dissociating and ionizing the ambient process gas (typically air).

“The PZ2 plasma treating unit is really effective and easy to use. We are very happy with it. Makes a real difference. We could not do without it.” – Ben, Videojet Technologies

Developed for end user-friendliness, the  Piezobrush PZ2 requires no specialist technical knowledge and no complex infrastructure. It is ready to use, just plug in and get started – no need for an external gas supply. Inert gas input is optional with the multi-gas nozzle. See the Nozzles tab below for more information.

The Piezobrush PZ2 has a low operating temperature as it uses “cold plasma”, meaning that it can be used to treat temperature-sensitive substrates.

Piezobrush PZ2-i Plasma Surface Treatment Tool for Automation
This surface treatment technology is also available in a robot mountable version for semi-automated or automated processes. The PZ2-i combines the effectiveness of plasma surface activation with the improved productivity and repeatability of using a robot to automate a process. See our range of robots for more information. The PZ2-i requires compressed air or an external gas supply to operate.


Features & Benefits

  • Improves adhesion & wetting of surfaces
  • Convenient and lightweight handheld format option
  • Robot mountable option for improving productivity and repeatability
  • Efficient and environmentally friendly
  • Uses “cold plasma”, so can be used to treat temperature-sensitive substrates
  • Interchangeable nozzles for different substrates
  • Compatible with an external gas supply


The Piezobrush PZ2 and Piezobrush PZ2-i are ideal for use in research and development settings such as a laboratory, and can also be utilised for small production lines.

  1. Medical
    Filters, cell wells, test tubes, catheters, syringes, petri-dishes, needle hubs, lenses
  2. Automotive
    Fuse covers, engine parts, air bag covers, rubber profiles, tubing, headlights
  3. Electronics
    Cable, switches, polyester pcb’s, housings & enclosures, screens
  4. Consumer
    Irons, blenders, shakers, measuring containers
  5. Food, cosmetics & drug
    Bottles, caps, jars, tubes
  6. Professional model making
    Preparing materials such as glass, GRP, ABS and other synthetic materials for bonding

The Piezobrush also allows simple germ reduction on a great variety of surfaces such as glass, plastics or metals and thus provides excellent support in effecting processes in the field of microbiology, medicine, microfluidics or food engineering.


Piezobrush PZ2 Specification
Electrical connection 110 – 240 V/50 – 60 Hz 15 V DC
Power requirement max. 30 W
Weight 170 g
Plasma temperature < 50 °C
Typical treatment distance 5 –10 mm
Typical treatment width 5 – 20 mm
Piezobrush PZ2-I Specification
Electrical connection 110 – 240 V/50 – 60 Hz 15 V DC
Power consumption max. 30 W
Weight 180g
Plasma temperature < 50°C
Typical treatment distance 2 – 10 mm
Typical treatment width 5 – 20 mm


There are 3 types of nozzle available, compatible with both the Piezobrush PZ2 and Piezobrush PZ2-i. These nozzles help to optimise surface activation across varying substrates:

piezobrush pz2 standard nozzle Standard Nozzle
Included with the PZ2 as standard. This nozzle is suitable for most tasks including non-conductive substrates.
piezobrush pz2 nearfield nozzle Nearfield Nozzle
This nozzle is most suitable for conductive substrates such as metals and conductive polymers.
piezobrush pz2 multigas needle nozzle Multi-gas & Needle Nozzle
This nozzle is designed for use with inert gas from an external gas supply, e.g. helium. The gas connection component can be removed to allow the nozzle to be used as a needle nozzle for more precise surface activation.

Read more about these nozzles on our blog: Challenging surface activation applications met by the Piezobrush PZ2.

Ordering Information

Part number Description
REL1000280402 Piezobrush PZ2 handheld plasma surface treatment device
Incl. Standard nozzle, power supply and carry case
Piezobrush PZ2 plasma surface treatment system
REL1000617200 Piezobrush PZ2-i for automated applications
Incl. Standard nozzle, cap rail power supply unit, connecting lead
PZ2-i on a robot close web
REL1000269201 Piezobrush PZ2 Standard nozzle
REL1000606801 Piezobrush PZ2 Nearfield nozzle
REL1000606700 Piezobrush PZ2 Multigas/Needle nozzle
REL1000606900 Piezobrush PZ2 nozzle kit
Incl. 1 x Standard nozzle, 1 x Nearfield nozzle, 1 x Multigas nozzle

All Downloads

Filename Size Download
Relyon Plasma brochure 4.08MB
plasma technology for surface cleaning 0.31MB
  • Last updated: June 2018
  • Version: 2.5

Statements, technical information and recommendations contained herein are based on tests we believe to be reliable but they are not to be construed in any manner as warrantees expressed or implied. The user shall determine the suitability of the product for his intended use and the user assumes all risk and liability whatsoever in connection therewith.