Complete turnkey solution for coating with the Plasma-SealTight® process

The turnkey, fully automated PTU1212 plasma cell was developed by Plasmatreat to enable the shop floor implementation of Plasma-SealTight® technology. The cell, which can be adapted to suit any conventional injection molding machine, enables the very rapid and environmentally friendly inline pretreatment of mass-produced plastic-metal components.

The PTU1212 contains everything the pretreatment process needs, from generator, robot, control technology, PCU plasma control unit and plasma jets to cables and consumables.


Compact unit: Turnkey PTU1212 Plasmatreat unit
Internal view of PTU1212 showing plasma nozzles, plasma control unit and automated parts handling system.


Plasma process engineering in the automated manufacturing of hybrid components

Two plasma systems placed side by side perform the plasma treatment. In the first step the robot – or in the case of smaller versions, an XY axis system – passes the metal inlay beneath an Openair-Plasma® nozzle. Here the surface of the inlay is cleaned to molecular level to remove all contamination and create the conditions for optimum wettability. Immediately after cleaning, the second plasma system applies the functional coating to the metal inlay using the Plasma-SealTight® process.

Inline Plasma-SealTight® process
Example showing integration of PTU1212 in an injection molding process.


Plasma-SealTight® at a glance

innovation and cost reduction

  • globally available industry solution
  • inline use in injection molding production lines (no external transport routes)
  • reliable and reproducible process
  • high development potential (new material combinations)
  • area-selective pretreatment at very high speeds

increased component quality

  • significantly improved bond adhesion
  • corrosion protection of metal inlay
  • media-tightness in the joint interface
  • highly precise and reproducible compounding process ensures consistent product quality

Environment and sustainability

  • complete elimination of solvents, primers and acids
  • no VOC emissions
  • very low use of chemicals (precursors)
  • high energy efficiency due to low energy consumption of the plasma unit
  • high energy efficiency due to the elimination of transport routes for semifinished components
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Related press articles

More Material Combinations, Lower Costs

Kunststoffe international (01/2020)
open document

Symbiosis between metal and plastic

open document

Cover story:
Hybrid technology – Adhesion as a benchmark

IST (International Surface Technology 1[3]/2017)
open document


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