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

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

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

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

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

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

Test results of SILIKOFTAL® ED: Salt spray test

Test results of SILIKOFTAL® ED: Humidity test

Test results of SILIKOFTAL® ED: Chemical resistance

Test results of SILIKOFTAL® ED: QUV test

Test results of SILIKOFTAL® ED: QUV test after 5000 h PU

Accelerated weathering

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 11302 (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. 9 Butanol grinding by ball mill Pos. 10 SILIKOFTAL ED1 32.4 2.0 1.0 1.6 24.5 0.5 3.0 32.0 Pos. 11 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

Performance data of SILIKOFTAL® ED After 10 days air drying

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.