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Surface preparation

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Treating a surface before gluing prepares the support and guarantees long-term hold and reliability of the assemblies.

Why treat a surface before gluing / coating?

  • To modify the surface property (surface activation),
  • To improve the adhesion of the support,
  • To clean, remove dust, degrease the material.

Atmospheric Plasma

Atmospheric Plasma is a treatment device for the preparation of surfaces in industrial production, it allows cleaning and surface activation on most materials such as plastic, metals, glass, semiconductor, FR4, etc. Treating a surface before adhesive prepares the support and guarantees long-term hold and reliability of the assemblies. With the Plasma device there is no need for chemical addition because the plasma activation process simply operates with compressed, dry and oil-free air. Due to the small size of the torch, the integration of the equipment can be easily adapted in the production or for automatic assembly process

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ADVANTAGES
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  • Line surface treatment
  • Cleans, degreases, dust the material
  • Improves the adhesion of the support before bonding
  • Clean no chemicals
  • Easy integration and adaptation for a production island
Plasma EquipmentPower
(W/kHz)
Processing speed (m / sec.)Band width (mm)Power supply dimensions (mm)Weight
(kg)
Technical datasheet
TorchL 140 x ⌀ 400,5
Plasma Star300 / 30200 à 4008 à 14L 562 x H 211 x P 42011,6

Vacuum plasma

The KEOL-Plasma Star vacuum surface treatment system is more powerful than the atmospheric KEOL-Plasma Star system to improve the surface property and adhesion of the substrate. The KEOL-Plasma Star vacuum pre-treatment allows a part to be treated on all its surfaces, including large parts. The KEOL-Plasma Star vacuum system increases the surface property on parts including in areas not accessible with an atmospheric KEOL-Plasma Star treatment.

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ADVANTAGES
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  • Improves surface tension
  • Treatment of a part on all its surfaces
  • Improves the adhesion of the support before bonding
  • Clean no chemicals
  • Mobile island
  • Cleans, dust and degreases the material
ReferencePower
(W/kHz)
Radio frequencyLoading /UnloadingDimensionsTechnical datasheet
In-line vacuum plasmaConveyor Tailored
Manual vacuum plasma40RF 13,56 MHzSingle door, double door, with drawers or revolving drumTailored

Excimer UV

UV light with a wavelength of 172 nm in vacuum generates ozone and active oxygen in large quantities.

Bonds on the surface of the material are simultaneously broken by vacuum UV light which imparts hydrophilicity to the surface of the material as the chemical reaction forms functional groups on the pendant bonds to provide functionality. This increases the ability of the adhesive to form bonds with the substrates during its crosslinking.

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ADVANTAGES
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  • Surface line surface treatment
  • Improves the adhesion of the support before bonding
  • Clean no chemicals
  • Mobile island
  • Cleans, dust and degreases the material
Equipment WavelengthIrradiationLamp lifeIrradiation surface (mm)Technical datasheet
Lamp holder10,3 kg400 x 38 mm
UV Excimer lamp172 nm*65 mW/cm²2 000 h220 g

*Value calculated assuming that the irradiance is measured with a UV wattmeter placed in the immediate vicinity of the lamp.

Chemical primer

The chemical primer allows manual treatment of plastic, metal, FR4 surfaces before bonding or coating by removing flux, glue, grease or silicone residues from bare and painted surfaces. Increases the surface energy of difficult plastics.

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ADVANTAGES
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  • Improves surface energy before bonding
  • Manual processing
  • Eliminate residues
  • Fast processing
  • All media
  • Ideal for the treatment of difficult plastics PP – PE – POM…
ReferenceIndustryColorChemical basisAdvantagesTechnical datasheet
KEOL-PRIMER 77XClear / amberPRIMER ALL EP/PU/MMA Ideal for the treatment of difficult plastics PP - PE - POM, etc.
KEOL-ACTIV 3109XColorlessACTIVATOR Manual treatment, eliminates residues
KEOL-PRIMER 3793XColorlessPRIZE Improves surface energy before bonding