Coating
Two main topics are covered in the coating department:
- Powder coating
- Wet coating
Here, both new coating developments from customers and formulations developed at the EZD are examined for their applicability as well as coating and surface properties. Special attention is paid to functional (e.g. electrically conductive, superhydrophobic and scratch-resistant) coatings. The complete range of substrates (metal, plastic, glass, ceramics, etc.) can be coated.
Coating properties to be investigated are:
- Adhesion
- Roughness
- Defects (holes, orange peel)
- Haptics
Surface properties:
- Surface tension (contact angle)
- Electrical conductivity
- Scratch resistance
- Washing and abrasion resistance
Laboratory
Precision in processing and analysis thanks to state-of-the-art technology
The competences of the EZD are complemented by a close exchange of experience with the application laboratories of equipment manufacturers. This ensures that the equipment in our laboratories is always state-of-the-art.
Technical equipment
Automatic film applicator
- Automatic film applicator for the production of uniform coatings on a wide variety of substrates (metal, plastic, glass, etc.)
- Max. Size of test area: A3 (297 x 420 mm)
- Hardness test rod ISO 1518
- Drying time recorder: ISO 9117-4
Powder coating system
- Hand gun with corona charging for coating different substrates
- Production of environmentally friendly, functional powder coatings
- Substrates: metal, plastic and glass after pre-treatment
Surface analysis
Adhesion
- The adhesion testers automatically perform tear-off tests to assess the adhesion/cohesion of coatings to metal, wood, concrete and similar substrates.
- Test stamp size 20 mm and 50 mm
- Standards DIN EN ISO 16276-1, DIN EN ISO 4624, ASTM D4541
Coating thickness measurement
- Ultrasonic coating thickness gauge for different substrates (metal, plastic, glass etc.)
- Measuring range 13 - 1,000 μm - Minimum layer thickness of a single layer: 13 μm
Tensiometer
- Measurement of the interfacial and surface tension of liquids using the plate method
- Measurement of contact angles on rectangular, round and cylindrical samples
- Contact angle measurement on powders using the Washburn method
- Determination of liquid density
- Determination of penetration and sedimentation of dispersions
- Measurement of surfactant properties; CMC determination; dosing via micro-dispenser
- Temperature range: 20 °C - 100 °C
- Measuring range: 1 - 2,000 mN/m
Abrasion resistance
- Automatic washability and abrasion tester including 2 pumps for test liquid supply
- Lifting/pushing speed: 1-60 strokes/min.
- Stroke/push length: 20-300 mm
- Max. specimen width: 70 mm per channel (with 4 tools)
- Max. specimen length: 350 mm
- Test according to ISO 11998, ASTM D 4213, ASTM D 2486
Contact angle measuring system
- Portable instrument for measuring the contact angle (water, diiodomethane)
- Calculation of surface free energy according to Owens-Wendt-Rabel-Kaelble, Wu, Zisman and Fowkes
Conductivity meter
- 4-point measuring method for measuring conductors and semiconductors in the lower resistance range.
- Measuring range: 10-4 - 107 Ω x cm.
- It is used for measurement in the low resistance range:
- of the specific surface resistance
- the volume resistivity (Ω·cm)
- the specific electrical conductivity (S/cm)
SKZ · German Plastics Center
Friedrich-Bergius-Ring 22
97076 Würzburg
Telefon: +49 931 4104-0
E-Mail: info@skz.de
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97076 Würzburg
Telefon: +49 931 4104-0
E-Mail: info@skz.de
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SKZ Training Center – Welding
Frankfurter Str. 19 c
97082 Würzburg
Telefon: +49 931 4104-123
E-Mail: training@skz.de
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97082 Würzburg
Telefon: +49 931 4104-123
E-Mail: training@skz.de
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SKZ · Branch office Halle
Training and Research Center
Köthener Str. 33a
06118 Halle (Saale)
Telefon: +49 345 53045-0
E-Mail: halle@skz.de
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Köthener Str. 33a
06118 Halle (Saale)
Telefon: +49 345 53045-0
E-Mail: halle@skz.de
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SKZ · Branch office Horb
Training Center
Rauher Grund 9
72160 Horb am Neckar
Telefon: +49 7451 62457-0
E-Mail: horb@skz.de
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Rauher Grund 9
72160 Horb am Neckar
Telefon: +49 7451 62457-0
E-Mail: horb@skz.de
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SKZ · Branch office Peine
Training Center
Woltorfer Str. 77, Halle G
31224 Peine
Telefon: +49 5171 48935
E-Mail: peine@skz.de
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Woltorfer Str. 77, Halle G
31224 Peine
Telefon: +49 5171 48935
E-Mail: peine@skz.de
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EZD · Branch office Selb
European Center for Dispersion Technologies (EZD)
Weißenbacher Str. 86
95100 Selb
Telefon: +49 9287 99880-0
E-Mail: ezd@skz.de
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Weißenbacher Str. 86
95100 Selb
Telefon: +49 9287 99880-0
E-Mail: ezd@skz.de
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Sales partner – Italy
PROCHEMA S.r.l.
Via Buonarotti 175
20900 Monza, Italy
Telefon: +39 039 281561
E-Mail: info@prochema.it
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Via Buonarotti 175
20900 Monza, Italy
Telefon: +39 039 281561
E-Mail: info@prochema.it
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Sales partner – Romania
Plastics Bavaria Equipment & Systems srl
Str. Iancu Jianu, nr. 26
500178 Braşov, Romania
Telefon: +40 268 412 559
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Str. Iancu Jianu, nr. 26
500178 Braşov, Romania
Telefon: +40 268 412 559
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EZD · Location Selb
European Centre for Dispersion Technologies (EZD)
c/o SKZ – KFE gGmbH
Weißenbacher Str. 86
95100 Selb
Phone: +49 9287 99880-0
eMail: ezd@skz.de
