Fraunhofer-Institut für Silicatforschung ISC
Fraunhofer-Institut für Silicatforschung ISC

© K. Dobberke for Fraunhofer ISC

ORMOCER® coatings with high scratch and abrasion resistance

The use of ORMOCER® coatings based on inorganic-organic hybrid polymers led to the successful development of scratch resistant coating systems for various substrate materials (using thermal and UV curing).

Properties

  • High scratch resistance at layer thicknesses of only a few micrometers
  • Lacquers are colorless and highly transparent
  • Dyes, pigments and fillers may be added
  • Combination of scratch resistance with other characteristics such as antisoiling, antistatic or diffusion-inhibiting properties

Areas of application

  • Scratch-resistant coating of plastics
  • Protective coating for metallic materials subject to mechanical or chemical stress
  • Coating of special ceramic substrates or glasses

Abrasion resistance of various ORMOCER® coatings for different substrates#

Substrate

Layer thickness (µm)

% Light scattering

*) uncoated

% Light scattering

*) coated

Curing

CR-39

10

20

1,4

thermal

PET

10

28

1,5

thermal

PMMA

10
10 

20

1,5
1,4 

UV
UV 

PC

14
10 

30

1,6
1,5 


thermal

UV 

PS

10

50

1,4

UV

Metallized glass

15

n.b.

2,1

thermal

Brass

10

n.b.

1,0

thermal

*) Taber Abraser test: 100 cycles, bearing weight 500 g, abrasive discs CS10 F
n.d.: not determined