Figure of merit

       
Materials Type 

Life time
(day)

 Surface Energy (mN/m²)
before after
Polyolefins PP 60 32 66
PE 60 30 66

Standard
Thermoplastics

     
PS 30 32
64
PA 6.6
 30 42 68
PA 6
 30 42 68
PET 60 37 58
PMMA 15 40 > 72
PCTA 15 42 67
PETG 15 39 70
Technical
plastics    
POM 10
38
50
PEI 30 40 66
PBT 60 42 > 72
Phéno. 15 45 > 72
PI 15 42 54
PEEK 15 38 54
PC 15 38 > 72
PVDF 10 32 50
UV varnish
 UV
15
35
58
Copolymers ABS
10
40
64
Composites &
Alloys
 ABS/PC 5
 40
64
PBT/FV
60 42 > 72
Elastomers SiF 1 28 46
SiO2 1 46 > 72
EPDM 15 44 67
inorganic glass
 Verre
< 1
46
> 72
Metals  
Zamac 7
50 > 72
Al 7 50 > 72
CuBe 7 41 65
Steel C
 4 47
70
Steel 13Cr 4 33 70
Other Please contact us
   

Life time is the maximum time before a clear decrease of the treatment efficiency
Surface Energy is measured by the Owens-Wendt methode on a contact angle device with image analysis. Given figures are the mean mesured total surface free energy(polar + dispersive). Standerd liguids used for the mean free energy determination are bidistilled water, formamid, pyridin and dimethylsulfoxyd.