BECKOCURE EH 2100w/44WA The Universal Hardener for Waterborne 2K Epoxy Coatings on Concrete and Metal

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1 BECKOCURE EH 2100w/44WA The Universal Hardener for Waterborne 2K Epoxy Coatings on Concrete and Metal Dr. Florian Lunzer, Global Research Director LRA Nürnberg, April

2 Content Introduction Application on Concrete Substrates Application on Metal Substrates Conclusion

3 Why Another wb Amine Hardener? Increasingly strict VOC regulations push formulators to move from solvent borne and high solids formulations to waterborne (wb) technologies Voice of Customers: What is needed in wb epoxy technology? Broader application window Fast return to service Low odor & Ultra low VOC Suitable for high compliance applications Easy handling BECKOCURE EH 2100w/44WA allows to combine fast drying with a broad application window and extremely low smell

4 BECKOCURE EH 2100w/44WA - Application on Concrete

5 Application on Concrete Value Proposition Fast drying - two coats a day Good low temperature drying Stable gloss/color during pot life Broad range of gloss achievable Very good water resistance No monomeric amines -Low odor Close to zero VOC formulations possible Easy to handle and formulate An excellent balance of properties based on patented technology

6 Tack Free Time with Reactive Diluted Liquid Epoxy Resin 24 h 22 h 20 h 18 h 16 h 14 h 12 h 10 h 8 h 6 h 4 h 2 h 0 h BECKOCURE EH 2100w/44WA BECKOPOX EH 623w/80WA Market reference Crosslinking 100% with liquid epoxy BECKOPOX EP128 / DFT 50µm on glass / drying at RT

7 Hardness Development with Liquid Epoxy Resin Pendulum Hardness (König) (DIN EN ISO 1522) drying at 23 C/50% RH drying at 10 C/85% RH 200 s 180 s 160 s 140 s 120 s 100 s 80 s 60 s 40 s 20 s BECKOCURE EH 2100w/44WA BECKOPOX EH 623w/80WA Market reference 200 s 180 s 160 s 140 s 120 s 100 s 80 s 60 s 40 s 20 s 0 s 24h 48h 168h 336h 0 s 24h 48h 168h 336h 504h Crosslinking 100% with liquid epoxy BECKOPOX EP128 / DFT 50µm on glass

8 Potlife & Gloss <60 with Liquid Epoxy Resin 100 GU 80 GU BECKOCURE EH 2100w/44WA BECKOPOX EH 623w/80WA 60 GU Market reference 40 GU 0.0 h 0.5 h 1.0 h 1.5 h 2.0 h 2.5 h Crosslinking 100% with liquid epoxy BECKOPOX EP128 / DFT 50µm on glass / drying at RT

9 Water Resistance, Immersion (Loss of Pendulum Hardness) 70% Coated glass panels, water immersed for 24h after 1 & 2 weeks drying time at RT 60% 50% 40% 30% 20% 10% 0% 1 week 2 weeks BECKOCURE EH 2100w/44WA BECKOPOX EH 623w/80WA Market reference Crosslinking 100% with liquid epoxy BECKOPOX EP128 / DFT 50µm on glass / drying at RT

10 Guiding Formulation for Concrete Formulation - Part A PBW ADDITOL VXW 6208 (dispersing agent) 3,50 Deionized water 4,30 Acticide MBS 0,10 ADDITOL VXW 6393 (defoamer) 0,40 Kronos ,00 Aerosil R972 0,30 PIGMENT PASTE 35,60 BECKOCURE EH 2100w/44WA 57,00 Rheolate FX 1070 (1:1 deion. Water) (thickener) 2,20 ADDITOL VXW 4926 (defoamer) 0,40 Deionized water 4,80 Total 100,00 Formulation Part A 100,0 100,0 100,0 BECKOPOX EP 128 Reactive diluted liquid epoxy BECKOPOX EP 2340w/56WA Emulsified liquid epoxy 56% solids BECKOPOX EP 2384w/57WA Solvent free type 1 Epoxy dispersion 19,7 41,7 77,0 Total 119,7 141,7 177,0 Crosslinking ratio: 100% Pigment - Binder Ratio: 0,6:1

11 Performance Characteristics on Concrete Combination partner BECKOPOX EP 128 Reactive diluted liquid epoxy BECKOPOX EP 2340w/56WA Emulsified liquid epoxy 56 % solids BECKOPOX EP 2384w/57WA Solvent free type 1 Epoxy dispersion VOC < 10 g/l < 10 g/l < 10 g/l Tack free time 7 h 4 h 4 h Potlife (drop of gloss) 1,5 h 1,5 h 1,5 h Pendulum Hardness (König) (DIN EN ISO 1522) after 24 hours after 7 days after 14 days 47s 156s 187s 100s 173s 188s 83s 105s 151s Chemical resistance Ethanol Acetic acid Household cleaners Aceton Xylol Hot tire test Very good Excellent Very good Pull off test on concrete (ISO 4624) A (excellent) A (excellent) A (excellent) Gloss <60 (DIN EN ISO 2813) 89 GU 87 GU 85 GU Crosslinking 100% / DFT 50µm on glass / drying at RT

12 Hot Tire Pick Up Test BECKOPOX EH 623w/80WA + BECKOPOX EP 128 Market reference + BECKOPOX EP 128 BECKOCURE EH 2100w/44WA + BECKOPOX EP 128 BECKOCURE EH 2100w/44WA + BECKOPOX EP 2340w/56WA Crosslinking 100%, 2 coats applied with roller, 1 week drying at RT, tire piece (58cm²) pressed with 160kg (2,76 kg/cm²) on coated concrete blocks for 4h at 40 C

13 Adhesion on Glazed Ceramic Tiles BECKOCURE EH 2100w/44WA + BECKOPOX EP 128 BECKOPOX EH 623w/80WA + BECKOPOX EP 128 Market reference + BECKOPOX EP 128 Crosslinking 100% with liquid epoxy resin BECKOPOX EP128 / DFT 70µm/ 1 week drying at RT

14 BECKOCURE EH 2100w/44WA - Application on metal

15 Application on Metal - Value Proposition Fast dryi ng even at l ow t emperature Excel lent anticorrosion performance on flash rust suscept abl e subst rates Excel l ent t op coat accept ance/bot h wb & sb technolog ies Easy t o handl e and formul ate Cl ose t o zero VOC formul ations possi bl e No monomeri c ami nes - Low odor

16 Guiding Formulation Anti- Corrosion Primer for Sandblasted Steel Formulation - Part A Deionized Water ADDITOL VXW 6208/60 (dispersing agent) ADDITOL VXW 6393 (defoamer) Silitin Z89 Bayferrox 3920 Bayferrox 306 Kronos 2190 EWO ADDITOL VXW 6393 Texanol ADDITOL VXW 6388 ADDITOL VXW 6503N CHE-COAT-CI L8AF CHE-COAT-CI L8NF (defoamer) (thickener) (substrate wetting) (flash rust inhibitor) (flash rust inhibitor) PBW 10,75 3,65 0,30 7,10 0,70 1,50 27,20 23,40 0,30 0,80 0,60 0,30 0,50 0,50 BECKOCURE EH 2100w/44WA 22,40 Total Part A 100,00 BECKOPOX EP 387w/52WA 52,70 Total 152,70 Mixture of Part A + Part B: 2:1 Crosslinking: 75% Pigment - Binder Ratio: 1,6:1 Solid content Part A: 73% Solid content Part A + B: 66%

17 Performance Characteristics on Sandblasted Steel Anti- corrosion primer with BECKOPOX EP 387w/52WA VOC Potlife Tack free time Pendulum Hardness (König) (DIN EN ISO 1522) after 24 hours RT after 7 days RT after 7 days RT + 7 days 50 C Flexibility Erichsen cupping (DIN EN ISO 1520) after 7 days RT after 7 days RT + 7 days 50 C Substrate. Smooth steel DFT app µm Delamination after 1000 h salt spray test (DIN EN ISO 9227) Substrate: Sandblasted Steel; DFT app µm Crosshatch on all panels with TC after 1hr regenerating time after 1000 h exposure 80g/l approx. 2 h >6 h 19s 76s 134s 5,0 mm 1,8 mm 5-6 mm 0

18 Performance on Sandblasted Steel 1000h Salt Spray Test (DIN EN ISO 9227) Primer only Primer + Top coat MACRYNAL SM 6810w/42WA Primer + Top coat MACRYNAL SM 2727/70X Total DFT 100 µm Total DFT 160 µm Total DFT 160 µm Top Coats applied after 7d RT drying

19 Performance on Sandblasted Steel 1000h Humidity Test (DIN EN ISO ) Primer only Primer + Top coat MACRYNAL SM 6810w/42WA Primer + Top coat MACRYNAL SM 2727/70X Total DFT 100 µm Total DFT 160 µm Total DFT 160 µm Top Coats applied after 7d RT drying

20 Performance on Sandblasted Steel 1000 h Salt Spray and Humidity Test Primer only Primer + Top coat MACRYNAL SM 6810w/42WA Total DFT 170 µm Total DFT 170 µm Primer, dried 7d at 5 C s/b Topcoat based on MACRYNAL SM 2727/70X applied and dried at RT

21 Conclusion The newly developed BECKOCURE EH 2100w/44WA based on patented technology will set future standards for waterborne 2K epoxy formulations for metal and concrete substrates. Key benefits: Fast drying even at low temperature - high performance Free of monomeric amines - low odor Ease of handling and use Multiple substrate application

22 Thank you

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