Waterpoxy waterbased epoxy system

Transcription

1 Waterpoxy waterbased epoxy system Giorgio Sabbadini Bankok June 2004

2 APPLICATION POSSIBILITIES OF THE WATERBASED EPOXY SYSTEMS INDUSTRIAL AND CIVIL ENGINEERING FIELDS

3 Reasons to switch to water based systems Legislation limitation of Volatile Organic Compounds (solvents, amines, reaktiv thinners etc.) health protection/-hygienics products with lower health risk for workers (i. e. MAKvalues) Saftey limitation of flamebility-/explosion danger by unflammable coatings

4 How to achieve environmently friendly epoxy systems Epoxy resins Semi solid epoxides (oligomers) or liquid epoxy resin (high solid system ) Solid epoxy resin in emulsion ( water based system) Hardner Switch to solvent free amino and polyamide based hardner (high solid system Switch to water based epoxy curing agent ( water based system)

5 application solvent High - Solid Aqueous Pot life > 8 h ca. 1 h 8 h Dust free < 1 h > 3 h 1 h Dry trough > 15 h > 15 h > 15 h spraying possible partly Possible Brush/roller possible possible possible viscosity < 100 mpas > 500 mpas < 100 mpas odor strong strong low cleaning With solvents With solvents With water temperature 5-40 C 5-40 C C humidity < 90 < 90 < 80 Wet substrate Not always Not always possible possible possible Solvent content % < 5 % < 5 %

6 H e a v y d u t y H ig h - S o lid possible s h o rt p o t-life slow drying A q u e o u s V e r y g o o d L o n g p o t - lif e Q u ic k d r y in g r e p a ir p o s s ib le V e r y g o o d Q u ic k d r y in g in d u s t r ia l c o n c r e t e C hem ical resistant N o t r e c o m m e n d e d Thickness p r o b le m V e r y g o o d C hem ical resistant F lo o r in g s H igh thickness O ne coat M e t a l p la s t ic h ig h t h ic k n e s s low thickness V e r y g o o d C hem ical resistant f lo o r in g s high thickness up to 2m m o n w e t c o n c r e t e M ultiple layers

7 Active Content (%) Viscosity (mpa.s/25 C) HEW Colour (Gardner) Density (g/ml/25 C) Waterpoxy n. m. n.d. Waterpoxy n. m. 1,10 Waterpoxy ,09 Waterpoxy I n.d. Waterpoxy n.d. Waterpoxy n.d. Waterpoxy n.d

8 Competitors situation civil engineering Competitor Product End use primer coating self levelling epoxy cement Cognis proposal Air product Anquamine 401 X X X Waterpoxy I 654 Anquamine 701 X X Wateroxy 751 /Waterpoxy 760 Epilink 360 X X Waterpoxy 603 UPPC W 803 X X X X Waterpoxy 751 / Waterpoxy 760

9 Competitors situation industrial application Hardners - Competitor Product End use primer top cote Cognis proposal Air product Anquamine 701 X X Waterpoxy 751/ Waterpoxy 755 Eoilink 360 X Waterpoxy 603 Anquamine 456 X Waterpoxy 801 UCB Beckopox 2188 X Waterpoxy 751/waterpoxy 755

10 Competitors situation industrial application Resin - Competitor Product End use primer top cote Cognis proposal UCB Beckopox EP 384w/53AMP X X Waterpoxy 1422 Beckopox 2380w/58WA X X Waterpoxy 1455 Resolution Epirez 3522-W-60 X X Waterpoxy 1422

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12 Civil engineering When can we suggest to use a water based epoxy system? A good sealing properties on concrete are needed For primer, coating or a self levelling with good adhesion retention on concrete where water is coming from the ground We need to clean the equipment with water When we need a ecologically friendly application

13 Epoxy Curing Agents Waterpoxy 751, 755,760 Concrete primer, coatings and self levelling floring Waterpoxy 603 Primer and top cote Waterpoxy I 654 Top cote and epoxy ciment

14 Waterpoxy % in H 2 O, free amine < 1 very low toxicity, ECC labeling: Xi, R 41 very high versatility and easy handling primer, coatings, self levelling and epoxy-cement-system good chemical resistance low yellowing visible end of pot-life (with liquid epoxy resin)

15 SELF LEVELLING FLOORING I 74/E 95 W.751/E 30 Filler/binder ratio common 1,8 : 1 3 : 1 Possible up to 3 : 1 up to 7 : 1 Thickness 2-4 mm 1-1,5 mm Surface appearance glossy semiglossy/mat (glossmeter 60 angle) Workability ("open time") 45-60' 20-30' Tack-free time 6-8 hrs 3-4 hrs Walkability 24 hrs 24 hrs Shore D hardness (full curing) Compressive strength (full curing) 50 N/mm 2 30 N/mm 2

16 Aggressive I 74/E 95 W.751/E 30 Sulphuric, hydrochloric acid 10% Acetic acid 10% 6 11 Xylene Ethanol Labelling C Xi Free amine content > 10% < 1% Tools cleaning Solvent water

17 Water based epoxy flooring coating CA/17 E 95 WP 751 E 30 Pot life hrs 0,45 2 2,5 Walkability time hrs Full cure days 7 7 Buchholz hardness 15 days 25 C Gloss development VOC gr/kg == 8 Abrasion resitance mg weight (calibrase CS cycle 1000 gr)

18 Waterpoxy % in H 2 O, free amine < 1 % raw materials are listed in the ECC positive list for food contact high water thinnability fast drying and curing speed even at low temperature good chemical resistance visible end of pot-life (with liquid epoxy resin) low yellowing

19 Compressive strength development at 20 C Time Product Waterpoxy 751 Waterpoxy 755 Competitor 1 day 1 4,5 5 3 days days days Compressive strength development at 8 C Time Product Waterpoxy 751 Waterpoxy 755 Competitor 1 day days days days

20 Waterpoxy % in H 2 O, free amine < 1 % no shrinkage at high thickness application high water thinnability fast drying and curing speed even at low temperature good chemical resistance visible end of pot-life (with liquid epoxy resin) low yellowing

21 lateral shrinkage Rialto products WP 751 0,00 1,00 2,00 3,00 4,00 5,00 6,00 7,00 8,00 total-shrinkage [L+R, mm]

22 6 mm thicness

23 Comparison alcali migration resistance Product Resistence to the alcali migration Alcali migration after drying Waterpoxy good no migration Vinyl acrilic latex slight slight seeding Solvent based acrylic migration - yellowing slight seeding Acrylic latex migration seeding

24 Properties/ primer Solvent based Solvent free Water based liquid epoxy resin Water based solid epoxy resin Pot life hrs min Curing time Overcoatability

25 Waterpoxy % in H 2 O very good emulsifying power suitable for primers and top coats Waterpoxy I % in H 2 O very good emulsifying power high gloss good chemical resistance suitable for primers, top coats and epoxy-cement

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27 Marine Coatings Industrial maintenance General Industry Anticorrosion coatings Production equipment High performance coatings Machinery Construction equipment Agricultural machinery Main market for solvent and high solid epoxy coatings

28 Resin/ Properties Alkyds Acrylates Urethanes Polyester Urethanes Epoxies Chemical resistance Corrosion resistance Film hardness Gloss retension maintenance

29 Waterbased epoxy system match the requirements of: Industrial maintenace market Genaral industry market

30 Protective coating When can we suggest to use a water based epoxy system? limitation of Volatile Organic Compounds is required We need to clean the equipment with water When we need a ecologically friendly application

31 Polymer Curing Agents Waterpoxy 751, 755 Anticorrosive primer and top cote Waterpoxy 801 Fast drying and sandable anticorrosive primer

32 Waterpoxy 1455 primer and top cote Solid Epoxy Resin Emulsions Waterpoxy 1422 top cote and primer

33 Waterpoxy % in H 2 O / PM 35:5 low toxicity very fast drying replacement of solvent systems excellent corrosion protection long pot life, 5 6 h primer application

34 Waterpoxy % in H 2 O / Ethoxypropanol 37:7 pigment wettability fast tack free time long pot-life (if cured with Waterpoxy 751) pot-life exceeding the normal working day tack free time comparable with solvent based (with Waterpoxy 751) very good corrosion resistance systems

35 Waterpoxy % in H 2 O / Ethoxypropanol 36:10 good pigment wettability very fast tack free time long pot-life (if cured with Waterpoxy 751; app. 5 h) visible end of pot-life higher pendulum-hardness in high built-films very good abrasion resistance very good corrosion resistance

36 Water based anticorrosive primer Versamid 115 WP 1455 WP 751 Chemres E 50 Pot life hrs > 8 > 8 Salt spray resistance hrs Full cure days 7 7 Buchholz hardness 15 days 25 C Overcoatability VOC gr/kg > 30 3

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38 Waterpoxy 751 vs Waterpoxy 801 in combination with Waterpoxy 1422 Properties WP WP 751 WP WP 801 Gloss 1 day days Buchholz hardness 1 day days days days days 63 71

39 Waterpoxy cycle Waterpoxy cycle

40 Water based top cote Versamid 225 WP 1422 WP 751 Chemres E 50 WP 755 Pot life hrs > 8 > 8 Gloss Full cure days 7 7 Buchholz hardness 15 days 25 C VOC gr/kg > 30 3

41 Chemical aggressive / time H 2 SO 4 10 % Versamid 115/Chemres E 50 X product Waterpoxy 751 / Waterpoxy 1455 Versamid AE 2350 XD 10 days 2,5 2,5 3 Acetic Acid 10 % WATERPOXY 751 CHEMICAL RESISTANCE IN COMBINATION WITH SOLID EPOXY RESIN EEW days Lactic acid 10 days Formaldeydhe 10 % 10 days 2,5 2 3 NaClO 5,5 % 10 days NaOH 5,5 % 10 days 3 3 3

42 Chemical aggressive / time Ethanol 15% Versamid 115/Chemres E 50 X product Waterpoxy 751 / Waterpoxy 1455 Versamid AE 2350 XD 10 days Ethanol 95% WATERPOXY 751 CHEMICAL RESISTANCE IN COMBINATION WITH SOLID EPOXY RESIN EEW days Xilene 10 days 3 1,5 3 Gasoline 10 days Buthyl Acetate 10 days 1,5 3 3 Water 10 days 3 3 3

43 Limitation of the epoxy system: Outdor exposure : chalking problem no available solution Gloss behaviour : loss of gloss during apllication some additives help to minimise the problem

44 Sovermol 9155: gloss influence on a coating based on Waterpoxy 1455 and Waterpoxy 751 System/time 24 h 7gg 25 C Hoven 30 C 7 C 25 C Hoven 30 C 7 C Top cote based on WP WP 751 time after 30' after 60' With Sov % on WP 751 time after 30' after 60' With Sov % on the system time after 30' after 60' 90 84

45 New development Waterpoxy WAX % in H 2 O fast drying replacement of solvent systems high gloss long pot life, 4 6 hrs with liquid epoxy resin Concrete top cote applications

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