1. The new technology for corrosion protection
Silicone - epoxy hybrid resin SILIKOFTAL® ED
Tego Chemie Service GmbH
Manfred Priesch

2. Why a new technology for corrosion protection?
SILIKOFTAL® ED combines
the advantages of silicone resins and epoxy resins:
Silicone resin:
excellent weather resistance
poor corrosion resistance
Silicone - epoxy hybrid resin:
excellent weather resistance
excellent corrosion resistance
Epoxy resin:
poor weather resistance
excellent corrosion resistance

3. Applications for SILIKOFTAL® ED: corrosion protection coatings
SILIKOFTAL® ED can be used as binder for a
huge variety of corrosion protection coatings:
structural steel
industrial plants
power plants
offshore-industry
waste water treatment plants
wood and paper industry plants
maritime area
concrete walls and floors

4. Features of SILIKOFTAL® ED
Main features:
excellent corrosion resistance in two coat systems
excellent resistance to a wide range of chemicals
excellent colour and gloss retention
high volume solids (~ 90%) and low VOC
Enviromental and application features:
compliance with the most severe requirements of health, safety and
enviromental regulations
low temperature cure (down to 0° C)
tolerance to high humidity during drying
high build application characteristics by standard application equipment
isocyanate free

5. Applications for SILIKOFTAL® ED: antigraffiti coatings
SILIKOFTAL® ED can be used as binder
for antigraffiti coatings for:
exteriors of rail coaches
transport vehicles
public utilities
Special features
graffiti resistance
dirt resistance
easy clean effect

6. Cost reduction with SILIKOFTAL® ED
The new coating needs only two instead of
three coatings layers
Silicone -
Epoxy
Zn-Primer 1-
top coat 2-
top coats epoxy
+ PU
silicone
epoxy
Zn-
Primer
Steel
125 m
175 PU

7. Test results of SILIKOFTAL® ED: Salt spray test

8. Test results of SILIKOFTAL® ED: Humidity test

9. Test results of SILIKOFTAL® ED: Chemical resistance

10. Test results of SILIKOFTAL® ED: QUV test

11. Test results of SILIKOFTAL® ED: QUV test after 5000 hPU

12. Accelerated weathering

13. Guiding formulation of SILIKOFTAL® ED: 2-pack epoxy siloxane hybrid coating for corrosion protection
1. Component A: p.b.w.
2. Component B (Hardener): p.b.w.
Pos. 1 SILIKOFTAL ED1
Pos. 2 Tinuvin (1:1 in Butanol)
Pos. 3 Tinuvin 2922 (1:1 in Butanol)
Pos. 4 Heliogenblue L 6901 F3
Pos. 5 Kronos 21604
Pos. 6 Talkum AT extra5
Pos. 7 TEGO Airex 9007
Pos. 8 Aerosil R 82006
Pos Butanol
grinding by ball mill
Pos SILIKOFTAL ED1
32.4
2.0
1.0
1.6
24.5
0.5
3.0
32.0
Pos SILIKOFTAL AC8
17.0
Mixtures of aliphatic polyamine with AMEO
are also possible as hardener
1 Tego Chemie Service: binder 2 Ciba: UV-stabilizer 3 BASF: pigment 4 Kronos: titanium dioxide 5 Norwegian Talc: filler 6 Degussa-Hüls: fumed silica 7 Tego Chemie Service : dearato
8 Tego Chemie Service : aminosilaner

14. Performance data of SILIKOFTAL® ED
After 10 days air drying

15. Conclusion
SILIKOFTAL® ED combines the advantages of a silicone resin and an expoy resin in a new class of siloxane - epoxy hybrids with regards to anti-corrosion and weather resistance.
These new material class of Tego enables you to design high performing, cost effective anti-corrosion coatings.