Surface Technology

Services

Synthesis and development

 

Synthesis of monomers and polymers

  • Customized modification of renewable raw materials such as sugars, fatty acids and lignins
  • Polyesters, polyurethanes, alkyds, poly(meth)acrylates, sugar acrylates, polyitaconates, polyvinyl acetates, UV-crosslinking polymers
  • Dispersions
  • Functionalized and switchable polymers

 

Development of coatings

  • Coatings on the basis of renewable raw materials
  • Aqueous and solvent-containing coatings in accordance with Decopaint and VOC guidelines
  • Interior coatings, exterior coatings
  • Functional coatings (antimicrobial, hydrophobic, flame-retardant, adhesion to PE, PP)

 

Development of printing inks and 3D-printing materials

  • UV-curable printing inks, thermoplastic screen-printing inks
  • UV-curable 3D-printing materials for SLA, DLP and MJM
  • Bio-based materials for FFM

 

Development of adhesives

  • Dispersion adhesives
  • Hotmelts / reactive hotmelts
  • 1 and 2-component PUR adhesives
  • UV-curable adhesives
  • Formaldehyde-free amino resins

Application and testing methods

 

Coatings

  • Coating laboratory with handling robot, equipped with modern application technology  
  • Roller coating
  • Automatic film applicator
  • UV/IR convection dryer

 

3D printing

  • Production of filaments for FFM printing and printing of test specimens and small components
  • UV printing using an SLA printer (13 x 13 x 18 cm, 405 nm, 70-micron laser)

Analytics

  • Determination of viscosities in accordance with DIN 53019, DIN EN ISO 2884-1, DIN EN ISO 2431
  • Determination of density in accordance with DIN EN ISO 2811, DIN 53217
  • Determination of particle size and zeta potential
  • Measurements using UV/VIS spectrophotometer with integrating sphere in the wave range from 280 to 720 nm 
  • Determination of molar mass and molar mass distribution
  • Determination of surface tension
  • Determination of minimum film-forming temperature in accordance with DIN ISO 2115
  • Adhesive analytics: We implement a range of methods for the characterization of reactive resins such as UF, MUF, PF and other adhesive systems. Listed below is a selection of analytical methods which we offer to our customers. Upon request, we are also able to offer further analytical methods. 

Properties

Areas of application

Method

Molar ratio U:F

UF / MUF

According to Kjehldahl

Free formaldehyde

UF / MUF / PF / PRF / MUPF

DIN EN 1243

Free isocyanate

PMDI / PUR

DIN EN 1242

Gel time

All adhesives

DIN 16945, DIN 16916

Viscosity

All adhesives

DIN 12092 / ISO 2555

Average molar mass ratio/chain length

UF / MUF

DIN 55672

Acid value

All adhesives

DIN EN 1241

Minimum film-forming temperature

Dispersion adhesives

DIN ISO 2115

Pot life

All adhesives

DIN EN 14022

Water tolerance

UF /MUF / PF / Dispersion adhesives

 

Alkali content

PF / PRF

DIN EN 1240

Melting point/softening range

All adhesives

DIN EN ISO 10363

Heat capacity/reaction heat

All adhesives

By means of DSC

Determination of composition

All adhesives

TGA-FTIR-MS analysis

Test procedure

  • Natural weathering (45° and 90°) and artificial weathering (QUV, XENON)
  • Mechanical, chemical and physical measuring methods, including temperature-dependent stress-strain diagrams, DMA, FTIR microscopy, paint analysis, MFT, pendulum hardness
  • Product testing and monitoring
  • Development of new methods for the determination of paint aging
  • Committee functions (CEN/TC 139/WG 2 and DIN NA 002-00-15 AA “Coatings for masonry”)

Natural and artificial weathering

Standard

Group

Title

DIN EN 927-6

Paints and varnishes

Paints and varnishes - Coating materials and coating systems for exterior wood - Part 6: Exposure of wood coatings to artificial weathering using fluorescent UV lamps and water

DIN EN ISO 2810

Paints and varnishes

Paints and varnishes - Natural weathering of coatings - Exposure and assessment

DIN EN ISO 4892-1

Plastics 

Methods of exposure to laboratory light sources - Part 1: General guidance

DIN EN ISO 4892-2

Plastics 

Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps

DIN EN ISO 4892-3

Plastics 

Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps

DIN EN ISO 16474-2

Paints and varnishes

Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps

DIN EN ISO 16474-3

Paints and varnishes

Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps

Testing of coatings

Standard

Group

Title

DIN 55653

Paints and varnishes

Determination of settling

DIN EN 927-1

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 1: Classification and selection

DIN EN 927-2

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 2: Performance specification

DIN EN 927-3

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 3: Natural weathering test

DIN EN 927-5

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 5: Assessment of the liquid water permeability

DIN EN 927-6

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 6: Exposure of wood coatings to artificial weathering using fluorescent UV lamps and water

DIN EN 927-7

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 7: Assessment of knot staining resistance of wood coatings

Fpr CEN/TS 927-8

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 8: Determination of the adhesion on wood after water exposure by a double-X-cut test

DIN CEN/TS 927-9

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 9: Determination of pull-off strength after water exposure

DIN EN 927-10

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 10: Resistance to blocking of paints and varnishes on wood

DIN EN 927-11

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 11: Assessment of air inclusions/microfoam in coating films

DIN EN 927-13

Paints and varnishes

Coating materials and coating systems for exterior wood - Part 13: Assessment of resistance to impact of a coating on a wooden substrate

DIN EN 16492

Paints and varnishes

Evaluation of the surface disfigurement caused by fungi and algae on coatings

DIN EN ISO 1522

Paints and varnishes

Pendulum damping test

DIN EN ISO 2409

Paints and varnishes

Cross-cut test

DIN EN ISO 2431

Paints and varnishes

Determination of flow time by use of flow cups

DIN EN ISO 2808

Paints and varnishes

Determination of film thickness

DIN EN ISO 2810

Paints and varnishes

Natural weathering of coatings - Exposure and assessment

DIN EN ISO 2811-1

Paints and varnishes

Determination of density - Part 1: Pycnometer method

DIN EN ISO 2813

Paints and varnishes

Determination of gloss value at 20°, 60° and 85°

DIN EN ISO 2884-1

Paints and varnishes

Determination of viscosity using rotary viscometers - Part 1

DIN EN ISO 3251

Paints and varnishes and Plastics

Determination of non-volatile-matter content

DIN EN ISO 3668

Paints and varnishes

Visual comparison of colour of paints

DIN EN ISO 4624

Paints and varnishes

Pull-off test for adhesion

DIN EN ISO 4628-1

Paints and varnishes

Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 1: General introduction and designation system

DIN EN ISO 4628-2

Paints and varnishes

Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 2: Assessment of degree of blistering

DIN EN ISO 4628-3

Paints and varnishes

Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 3: Assessment of degree of rusting

DIN EN ISO 4628-4

Paints and varnishes

Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 4: Assessment of degree of cracking

DIN EN ISO 4628-5

Paints and varnishes

Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 5: Assessment of degree of flaking

DIN EN ISO 4628-6

Paints and varnishes

Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 6: Assessment of degree of chalking by tape method

DIN EN ISO 6504-3

Paints and varnishes

Determination of hiding power of paints for masonry and concrete

DIN EN ISO 7783

Paints and varnishes

Determination of water-vapour transmission properties - Cup method

DIN EN ISO 15184

Paints and varnishes

Determination of film hardness by pencil test

DIN EN ISO 16474-2

Paints and varnishes

Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps

DIN EN ISO 16474-3

Paints and varnishes

Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps

prEN 16492

Paints and varnishes

Evaluation of the surface disfigurement caused by fungi and algae on coatings

DIN CEN/TS 16358
DIN SPEC 91029

Paints and varnishes

Coating materials and coating systems for exterior wood - Assessment of air inclusions/microfoam in coating films

DIN CEN/TS 16359
DIN SPEC 91030

Paints and varnishes

Coating materials and coating systems for exterior wood - Assessment of knot staining resistance of wood coatings

DIN CEN/TS 1636
DIN SPEC 91031

Paints and varnishes

Coating materials and coating systems for exterior wood - Assessment of film extensibility by indentation of a coating on a wooden substrate

DIN CEN/TS 16498
DIN SPEC 91032

Paints and varnishes

Coating materials and coating systems for exterior wood - Assessment of tannin staining

DIN CEN/TS 16700
DIN SPEC 55675

Paints and varnishes

Coating materials and coating systems for exterior wood - Assessment of resistance to impact of a coating on a wooden substrate

Testing of diverse materials

Standard

Group

Title

DIN 19268

pH-measurement

pH-measurement of aqueous solutions

DIN EN 318

Wood-based panels

Determination of dimensional changes associated with changes in relative humidity

DIN EN 321

Wood-based panels

Determination of moisture resistance under cyclic test conditions

DIN EN 322

Wood-based panels

Determination of moisture content

DIN EN 438-2

High-pressure decorative laminates (HPL)

Sheets based on thermosetting resins (usually called laminates) - Part 2: Determination of properties

DIN EN 438-7

High-pressure decorative laminates (HPL)

Sheets based on thermosetting resins (Usually called Laminates) - Part 7: Compact laminate and HPL composite panels for internal and external wall and ceiling finishes

DIN EN 12086

Thermal insulating products for building applications

Determination of water vapour transmission properties

DIN EN 12087

Thermal insulating products for building applications

Determination of long term water absorption by immersion

DIN EN 12091

Thermal insulating products for building applications

Determination of freeze-thaw resistance

DIN EN 15534-1

Plastics (WPC / NFC)

Composites made from cellulose-based materials and thermoplastics (usually called wood-polymer composites (WPC) or natural fibre composites (NFC)) - Part 1: Test methods for characterisation of compounds and products

DIN EN 15534-4

Plastics (WPC / NFC)

Composites made from cellulose-based materials and thermoplastics (usually called wood-polymer composites (WPC) or natural fibre composites (NFC)) - Part 4: Specifications for decking profiles and tiles

DIN EN 15534-5

Plastics (WPC / NFC)

Composites made from cellulose-based materials and thermoplastics (usually called wood-polymer composites (WPC) or natural fibre composites (NFC)) - Part 5: Specifications for cladding profiles and tiles

DIN EN ISO 62

Plastics

Determination of water absorption

DIN EN ISO 291

Plastics

Standard atmospheres for conditioning and testing

DIN EN ISO 527

Plastics 

Determination of tensile properties

DIN EN ISO 4892-1

Plastics 

Methods of exposure to laboratory light sources - Part 1: General guidance

DIN EN ISO 4892-2

Plastics 

Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps

DIN EN ISO 4892-3

Plastics 

Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps

DIN EN ISO 6507

Metallic materials

Vickers hardness test

DIN EN ISO 8510

Adhesives

Peel test for a flexible-bonded-to-rigid test specimen assembly - Part 2: 180 degree peel

DIN EN ISO 11502

Plastics

Determination of blocking resistance

DIN EN ISO 11664

Colorimetry

CIE standard colorimetric observers

DIN EN ISO 12572

Thermal insulation of buildings and components

Hygrothermal performance of building materials and products - Determination of water vapour transmission properties - Cup method

DIN EN ISO 18314-1

Analytical colorimetry

Analytical colorimetry - Part 1: Practical colour measurement

prEN 16492

Paints and varnishes

Evaluation of the surface disfigurement caused by fungi and algae on coatings

DIN ISO 2115

Plastics

Polymer dispersions - Determination of white point temperature and minimum film-forming temperature

ISO 554

 

Standard atmospheres for conditioning and/or testing

Damage analysis

 

The fast and unequivocal clarification of cases of damage to coated wood, wood bondings, wood-based materials and solid wood requires a combination of practical experience and specialized scientific methods. For damage analyses, we apply specific scientific and forensic methods and continuously develop these techniques further. Ongoing research as well as our participation on technical committees and in standardization bodies provides us with the latest findings at first hand. The experience gained from damage analyses also serves as a basis for the planning of new research projects.

 

  • Analysis of defects in coatings, bondings, wood-based materials and solid wood
  • Application of microscopic, spectroscopic, mechanical and forensic methods
  • Clarification of claims for companies, courts and assessors