Waterpoxy waterbased epoxy system Giorgio Sabbadini Bankok June 2004
APPLICATION POSSIBILITIES OF THE WATERBASED EPOXY SYSTEMS INDUSTRIAL AND CIVIL ENGINEERING FIELDS
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
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)
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 10-35 C humidity < 90 < 90 < 80 Wet substrate Not always Not always possible possible possible Solvent content 40-55 % < 5 % < 5 %
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
Active Content (%) Viscosity (mpa.s/25 C) HEW Colour (Gardner) Density (g/ml/25 C) Waterpoxy 1422 54 1000 - n. m. n.d. Waterpoxy 1455 56 1000 - n. m. 1,10 Waterpoxy 603 50 45000 190 12 1,09 Waterpoxy I 654 70 17000 170 7 n.d. Waterpoxy 751 60 12000 225 4 n.d. Waterpoxy 755 60 30000 180 5 n.d. Waterpoxy 760 60 10000 190 8 n.d
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
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
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
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
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
Waterpoxy 751-60 % 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)
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) 70-80 10-20 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) 80 80 Compressive strength (full curing) 50 N/mm 2 30 N/mm 2
Aggressive I 74/E 95 W.751/E 30 Sulphuric, hydrochloric acid 10% 38 25 Acetic acid 10% 6 11 Xylene 25 28 Ethanol 20 17 Labelling C Xi Free amine content > 10% < 1% Tools cleaning Solvent water
Water based epoxy flooring coating CA/17 E 95 WP 751 E 30 Pot life hrs 0,45 2 2,5 Walkability time hrs 16-24 16 24 Full cure days 7 7 Buchholz hardness 15 days 25 C 91 91 Gloss development 60 60-70 25-30 VOC gr/kg == 8 Abrasion resitance mg weight 70-80 130 (calibrase CS 17 1000 cycle 1000 gr)
Waterpoxy 755-60 % 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
Compressive strength development at 20 C Time Product Waterpoxy 751 Waterpoxy 755 Competitor 1 day 1 4,5 5 3 days 9 17 17 7 days 18 28 29 15 days 22 31 35 Compressive strength development at 8 C Time Product Waterpoxy 751 Waterpoxy 755 Competitor 1 day -- -- -- 3 days -- 9 8 7 days 4 24 20 15 days 8 29 25
Waterpoxy 760-60 % 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
lateral shrinkage Rialto 8058-071 8058-066 products 8085-003 7707-197 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]
6 mm thicness
Comparison alcali migration resistance Product Resistence to the alcali migration Alcali migration after drying Waterpoxy 1455 + 751 good no migration Vinyl acrilic latex slight slight seeding Solvent based acrylic migration - yellowing slight seeding Acrylic latex migration seeding
Properties/ primer Solvent based Solvent free Water based liquid epoxy resin Water based solid epoxy resin Pot life hrs 24 15 20 min 2 6 8 Curing time 24 24 24 24 Overcoatability 18-24 24 2-48 2-48
Waterpoxy 603 50% in H 2 O very good emulsifying power suitable for primers and top coats Waterpoxy I 654 70% in H 2 O very good emulsifying power high gloss good chemical resistance suitable for primers, top coats and epoxy-cement
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
Resin/ Properties Alkyds Acrylates Urethanes Polyester Urethanes Epoxies Chemical resistance Corrosion resistance Film hardness Gloss retension maintenance
Waterbased epoxy system match the requirements of: Industrial maintenace market Genaral industry market
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
Polymer Curing Agents Waterpoxy 751, 755 Anticorrosive primer and top cote Waterpoxy 801 Fast drying and sandable anticorrosive primer
Waterpoxy 1455 primer and top cote Solid Epoxy Resin Emulsions Waterpoxy 1422 top cote and primer
Waterpoxy 801-60% 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
Waterpoxy 1455 56 % 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
Waterpoxy 1422 54% 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
Water based anticorrosive primer Versamid 115 WP 1455 WP 751 Chemres E 50 Pot life hrs > 8 > 8 Salt spray resistance hrs 600 400 Full cure days 7 7 Buchholz hardness 15 days 25 C 77 77 Overcoatability 18-24 2-48 VOC gr/kg > 30 3
Waterpoxy 751 vs Waterpoxy 801 in combination with Waterpoxy 1422 Properties WP 1422 + WP 751 WP 1422 + WP 801 Gloss 1 day 77 10 days 45 40 38 Buchholz hardness 1 day 50 50 2 days 52 63 4 days 55 67 7 days 59 67 10 days 63 71
Waterpoxy 1422 100 cycle Waterpoxy 1455 100 cycle
Water based top cote Versamid 225 WP 1422 WP 751 Chemres E 50 WP 755 Pot life hrs > 8 > 8 Gloss 60 90 80 Full cure days 7 7 Buchholz hardness 15 days 25 C 77 67 VOC gr/kg > 30 3
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 500 10 days 1 1 3 Lactic acid 10 days 1 1 3 Formaldeydhe 10 % 10 days 2,5 2 3 NaClO 5,5 % 10 days 3 3 3 NaOH 5,5 % 10 days 3 3 3
Chemical aggressive / time Ethanol 15% Versamid 115/Chemres E 50 X product Waterpoxy 751 / Waterpoxy 1455 Versamid AE 2350 XD 10 days 3 3 3 Ethanol 95% WATERPOXY 751 CHEMICAL RESISTANCE IN COMBINATION WITH SOLID EPOXY RESIN EEW 500 10 days 1 0 3 Xilene 10 days 3 1,5 3 Gasoline 10 days 3 3 3 Buthyl Acetate 10 days 1,5 3 3 Water 10 days 3 3 3
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
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 1455 + WP 751 time 0 71 85 63 68 81 42 after 30' 88 91 68 86 87 57 after 60' 90 87 With Sov 9155 1% on WP 751 time 0 86 89 67 82 86 67 after 30' 92 92 81 89 88 81 after 60' 93 90 With Sov 9155 1% on the system time 0 85 86 64 82 83 43 after 30' 92 90 78 89 86 67 after 60' 90 84
New development Waterpoxy WAX 14-329 - 80 % 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