Isytech Plasma - Traitements de surfaces - Fabrication de machines

Packaging

Le Belleguy — 2026-03-10T16:10:06Z

Activation prior to labelling, printing or metallisation

Achieving good adhesion of coatings on plastics is challenging because these materials are often hydrophobic and have low surface energy. Surface preparation is therefore necessary to improve the adhesion of adhesives, paints or coatings.
Common methods include adhesion primers, which can sometimes be harmful to the environment.
Plasma is a more environmentally friendly alternative.
In addition to plastics, it is possible to improve the surface of many materials using PECVD treatment.

Barrier treatment for plastics

Isytech offers a wide range of barrier coating solutions suitable for a wide range of polymers.

We invite you to visit our pages on these solutions.
Barrier coating

Transport and defence

Le Belleguy — 2026-03-10T16:10:01Z

Activation prior to bonding, printing or painting

Coatings do not adhere well to plastics (PP, PEEK, POM etc.) because these materials are often hydrophobic and have low surface energy. Surface preparation is therefore necessary to improve adhesion. The treatment also ensures that the surface complies with PWIS/LABS free standards.
Common methods include adhesion primers, which can sometimes be polluting.
Plasma is a more environmentally friendly alternative.
In addition to plastics, it is possible to improve the surface of many materials using PECVD treatment.

Fluoropolymer etching

Tetra Etch, or Tetra Etching, is a chemical surface treatment for PTFE (Teflon) that makes its surface polar and bondable.
It is now possible to avoid this process by using plasma etching technology.
The reaction activates the PTFE to enable optimal bonding, whilst avoiding the constraints associated with corrosive and toxic products.
Industrial constraints are radically reduced.

Processing of composites

Plasma treatment is now an essential technique in the preparation of composite materials prior to bonding or impregnation.

When it comes to bonding, the main challenge with composites — particularly those based on carbon fibres or epoxy resins — lies in their low surface energy, which makes it difficult for adhesives to bond effectively.
Plasma treatment helps to clean the surface of any organic contamination, thereby increasing the surface energy.

For impregnation, plasma plays an essential complementary role. It promotes the uniform penetration of the resin into the fibre reinforcement. This reduces the presence of voids and dry spots, two major defects that weaken the final part. Plasma-treated parts thus exhibit a better fibre/matrix interface, resulting in improved mechanical properties.

Medical

Le Belleguy — 2026-03-10T16:09:59Z

Surface preparation for printing or coating

It is often difficult to achieve good adhesion of inks and coatings on plastic medical components, as many of the polymers used in medical devices are naturally hydrophobic and have low surface energy. This results in poor ink adhesion, delamination or uneven coating during processes such as pad printing, inkjet marking or metallisation of the devices.

Surface preparation is therefore necessary to ensure reliable and durable printing.

Plasma surface treatment allows for precise modification of the surface without affecting the material in depth.

Increase wettability and surface energy

Many medical-grade polymers (e.g. PE, PP or PTFE) are highly hydrophobic, which prevents liquids such as inks, adhesives and biological fluids from spreading evenly. This poor wettability limits the performance of many applications.

Plasma treatment increases the surface energy of the material. This modification improves the distribution of liquids, enhances coating uniformity and promotes better adhesion between layers.

Consumer goods

Le Belleguy — 2026-03-10T13:53:58Z

Pre-treatment prior to bonding, printing or metallisation

Achieving good adhesion of coatings on plastics is challenging because these materials are often hydrophobic and have low surface energy. Surface preparation is therefore necessary to improve the adhesion of adhesives, paints or coatings.
Common methods include adhesion primers, which can sometimes be polluting.
Plasma is a more environmentally friendly alternative.
In addition to plastics, it is possible to improve the surface of many materials using PECVD treatment.

Stain-resistant treatment for plastics

We have developed stain-resistant plasma treatments for a wide variety of polymers.
By adjusting the plasma parameters, it is possible to create an effective barrier that prevents the migration of substances, such as food, into the plastic.
This barrier prevents the absorption of food aromas and oils by the plastic, thereby extending the shelf life of food and preserving its quality.
Plasma surface modification is a suitable solution to meet the food industry's growing requirements in terms of safety and quality.

Barrier treatment for plastics

Isytech offers a wide range of barrier coating solutions suitable for a wide range of polymers.

We invite you to visit our pages on these solutions.
Barrier coating

Improved drying

By making a surface more hydrophilic, plasma promotes better distribution of water across the surface, which can speed up the drying process.
The surface treatment allows water to spread evenly in a thin layer rather than forming droplets, thereby increasing the surface area available for evaporation. Furthermore, a hydrophilic surface can reduce the risk of water marks and improve the adhesion of coatings or adhesives applied subsequently.
By optimising the drying process, plasma modification contributes to the efficiency and quality of finished products across various industrial sectors.

Electronics

Le Belleguy — 2026-03-10T12:47:29Z

Plasma etching treatments on PCBs

Isytech has developed plasma treatment technologies dedicated to cleaning, degreasing and preparing the surfaces of printed circuit boards and drill holes prior to processes such as bonding, metallisation and soldering

There are multiple objectives:

Erosion of the hole wall by etching/removal of drilling burrs/removal of carbides, for through holes or blind holes, using a drill bit or laser.
Removal of residues such as fine copper particles by ablation, fine wires, glue, etc.
Removes residual solder masks and improves solder diffusion in small spaces and adhesion.
Excellent results for metals and composite materials: FR-4 PCB, RT&XT Duroid, Roger PCB, F, Polyimide, PTFE, etc.
Increases surface energy before chemical copper plating, better adhesion also on PTFE.
Ideal for multilayer printed circuit boards with different materials.
Improves the adhesive strength between the different layers of the board.
For electronic boards, improves the adhesion of resin for encapsulation or varnish.
Dry, easy, reliable and reproducible process, suitable for mass production.
No risk to the operator.
Avoids the usual chemical baths based on acid or sodium-naphthalene mixtures, etc.
Using vacuum plasma surface treatment, our technology is effective and environmentally friendly.

Potting and Gluing

To ensure perfect encapsulation, the adhesive must ‘wet' the substrate. Without the adhesive's surface tension being lower than that of the material to be bonded, chemical interaction is impossible.

Most polymers have naturally low surface energy. This characteristic hinders their use in critical bonding or printing applications. To overcome this technological barrier, surface treatment is essential.

Plasma treatment acts as a surface catalyst. By breaking the chemical bonds of the polymer at the molecular level, it creates functional groups. These anchor points allow ultra-strong chemical bonds to form with your adhesives or other polymers.

Isytech supports you in this optimisation with two solutions adapted to your production constraints:

Low Pressure Plasma: For uniform treatment of complex parts in large volumes.

Plasma Torch: For flexible, local integration into your production lines.