Durable easy-clean surfaces                       for the building industryFranz HörzenbergerOCAS, ArcelorMittal Global R&...
Who are we?               “Onderzoekscentrum voor de Aanwending van Staal”                  140 researchers, technicians a...
It is about dirt …Dirty surfaces impact… aesthetics (colour/gloss change)… visibility (impact on transmission)… energy sav...
… and a new concept to keep surfaces clean Various concepts on material surfaces have been put forward for improving  the...
… and a new concept to keep surfaces clean Various concepts on material surfaces have been put forward for improving  the...
A new concept based on nano-technologyLANCAS Easy-clean functionality is obtained by applying a transparent nano-meter thi...
A new concept based on an efficient processLANCAS Easy-clean process techology has distinct competitiveadvantages compared...
An active clean effect on short termOutdoor testing demonstrates an immediate and a highly visible effect ofLANCAS Easy-cl...
An active clean effect on mid term Outdoor testing demonstrates a durable effect of  LANCAS Easy-clean coating on painted...
An active clean effect on mid-term Outdoor testing indicates a durable effect of LANCAS Easy-clean coating on  transparen...
An active clean effect on mid term   During the outdoor exposure (Ghent, Belgium 2010/2011) the surface of    reference g...
An efficient easy clean effect Standardised lab testing by                           1 preveals   excellent cleaning effi...
An active clean effect on long term Resistance to accelerated ageing (under high UV, T, humidity level) of  minimum 4000 ...
An easy clean effect   Standard cleaning has no impact on the                                       LANCAS Easy-clean co...
An easy clean effect Standardised lab testing by                 preveals high cleaning efficiency for  LANCAS Easy-clean...
An active clean effect on other materials Easy Cleanable surfaces have been designed on a wide range of materials.    – m...
Summary Durable easy clean(able) surfaces have been designed on various  construction materials with a predicted lifetime...
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Sirris Smart Coating workshop - Easy-to-clean and Self cleaning Coatings - 19 May 2011 - Durable easy-clean surfaces for the building industry - Franz Hörzenberger - Ocas-Lancas

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The use of functional nano-metric easy-clean layers on material surfaces can reduce the dirt adsorption, facilitate dirt removal by rain, avoid dirt concentration /stripes and reduce cleaning efforts (longer intervals between cleaning and easier cleaning). OCAS, a Flemish steel research center has developed cost-competitive easy-clean coating layers that can be applied to a whole range of materials (painted metal, painted wood, plastics, glass, stone, and textile).

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Sirris Smart Coating workshop - Easy-to-clean and Self cleaning Coatings - 19 May 2011 - Durable easy-clean surfaces for the building industry - Franz Hörzenberger - Ocas-Lancas

  1. 1. Durable easy-clean surfaces for the building industryFranz HörzenbergerOCAS, ArcelorMittal Global R&D (Ghent, B) Sirris Smart coating lab – May 19, 2011
  2. 2. Who are we? “Onderzoekscentrum voor de Aanwending van Staal” 140 researchers, technicians and support staff yearly budget of ± 20 million € 2 locations: Zelzate and Zwijnaarde 1 of the 14 R&D centers of ArcelorMittalConfidential
  3. 3. It is about dirt …Dirty surfaces impact… aesthetics (colour/gloss change)… visibility (impact on transmission)… energy savings (heat flow)… yield (conversion of sun light) Pollution of the surface over time greatly impacts the aesthetics, visibility and transparancy
  4. 4. … and a new concept to keep surfaces clean Various concepts on material surfaces have been put forward for improving the anti-stain properties. Oleophilic ‘Sol/gel’ Active TiO2 Silicone Oleophobic polymer activation by UV F-based (sunlight) solutions Hydrophilic Hydrophobic Limitations related to current available technologies limit a broad commercial roll-out
  5. 5. … and a new concept to keep surfaces clean Various concepts on material surfaces have been put forward for improving the anti-stain properties. 90 80 Reference 70 Oleophilic contact angle, ° 60 50 40 ‘Sol/gel’ 30 easy clean L A NCA S Active TiO2 Silicone 20 Oleophobic polymer 10 Easy-clean F-based 0 solutions 0 7 14 21 28 outdoor expsoure, days Hydrophilic Hydrophobic LANCAS Easy-clean technology is based on the unique combination of durable hydrophilic and oleophobic properties of the coating. LANCAS combines unique properties to ensure optimal and durable easy-clean surfaces
  6. 6. A new concept based on nano-technologyLANCAS Easy-clean functionality is obtained by applying a transparent nano-meter thick coating to the substrate material and provides the surface withhighly improved and durable anti-stain properties. Oxide type nano-coating Organic coating (OPTIONAL)  Top-coat (PE, PUR, PVDF)  Clear-coat (PE, AC)  Powder coat (PE, EP) Substrate  Metal: steel, aluminum, zinc, …  Wood: painted, laminated  Textile: synthetic (nylon, …)  Plastics: PE/PP/PC/PS/PMMA/PVC/…  GlassThe LANCAS Easy-clean coating can be applied for both in- and outdoorapplications. LANCAS Easy-clean coating is a nano-thin and invisible coating
  7. 7. A new concept based on an efficient processLANCAS Easy-clean process techology has distinct competitiveadvantages compared to the alternative application technologiesT, ° C ― Applicable to a wide range of250 substrates, including heat-sensitive substrates200 ― Wide process-speed window and150 sol/gel atmospheric processing allows for nano100 in-line processing on existing L ANCAS production lines 50 Easy-clean sol/gel ― Green process (no VOCs, dry) nano 4 5 1 10 10 ² 10 ³ 10 10 log t, s sec min hours LANCAS Easy-clean process allows for in-line istallations and cost-competitive application
  8. 8. An active clean effect on short termOutdoor testing demonstrates an immediate and a highly visible effect ofLANCAS Easy-clean coating on painted metal. Reference LANCAS Easy-clean Painted metal samples - after 1 month outdoor exposure in Liege/Belgium stripes Samples illustrate the dirt pick-up and effect of rain on the reference panel (left side) and a panel with the easy-clean coating (right side) LANCAS Easy-clean effect immediately results in improved aesthetics of the substrate
  9. 9. An active clean effect on mid term Outdoor testing demonstrates a durable effect of LANCAS Easy-clean coating on painted metal 80 79 Reference LANCAS Easy-clean L*-value (white/grey colouration) 78 77 LANCAS Easy Clean 76 75 Reference 74 73 72 0 50 100 Original aesthetics of painted surface outdoor exposure (# weeks) is kept during 2 years and over LANCAS Easy-clean technology results in long lasting anti-stain properties
  10. 10. An active clean effect on mid-term Outdoor testing indicates a durable effect of LANCAS Easy-clean coating on transparent plastic materials (e.g. polycarbonate, PMMA, …) Example of application: 88 PC 87 LANCAS L* value (white/grey colouration) Easy Clean 86 85 84 PC Reference 83 82 Lancas Easy-clean coating ensures higher 81 transparency over long period of time thanks to avoidance of dirt pick-up by the surface. 80 0 5 10 15 20 25 duration (# weeks) In addition, the initial transparency can be increased by the nano coating LANCAS Easy-clean technology can provide improved transmission on transparant substrates
  11. 11. An active clean effect on mid term  During the outdoor exposure (Ghent, Belgium 2010/2011) the surface of reference glass becomes less transparent due to dirt accumulation while an Easy-clean glass surface keeps the transmission almost constant over time. 100% transmission 90% 80% 70% 0 0.5 1 1.5 2 2.5 3 3.5 glass reference Easy Clean glass outdoor exposure months Remark: the LANCAS Easy-clean layers for this sample have not been optimised for good easy clean behaviour and increase of transmission.LANCAS Easy-clean coating avoids transmission reduction by dirt adhesion on transparant substrates Confidential
  12. 12. An efficient easy clean effect Standardised lab testing by 1 preveals excellent cleaning efficiency for LANCAS Easy-clean layers. – Lab application of specified city dirt and simulation of rainfall (without activation by UV light) Reference LANCAS Easy-clean Polycarbonate Polycarbonate < 15% cleaning effect 85 - 95% cleaning effect1 Cleaning Technology institute in Krefeld/Germany LANCAS Easy-clean coating ensures dirt on the substrate is removed with rainfall
  13. 13. An active clean effect on long term Resistance to accelerated ageing (under high UV, T, humidity level) of minimum 4000 hours indicates a minimum 5 - 7 years lifetime. Extended testing on-going. LANCAS Easy-clean Reference Reference accelerated UV testing area Easy-clean LANCAS carbon black testing area Reference Test: impregnation with carbon black solution Accelarated testing indicates the durable effect of the LANCAS Easy-clean technology Confidential
  14. 14. An easy clean effect Standard cleaning has no impact on the  LANCAS Easy-clean coating makes LANCAS Easy-clean coating. cleaning easier. Easy Clean Method Load # Cycles Result 100 stainless 90 (detergent) Scotch- No 1000 OK % removal of sunflower oil 80 brite stainless 70 (no soft 0.2 kg 1000 OK detergent) 60 Scotch- 50 stainless No 1000 OK (detergent) brite 40 0.2 kg 100 Attack 30 abrasive 20 No 1000 OK 10 Nylon 0 brush 0 100 200 300 0.2 kg 1000 OK Flow cleaning time (s) LANCAS Easy-clean technology facilitates removal of dirt and oil Confidential
  15. 15. An easy clean effect Standardised lab testing by preveals high cleaning efficiency for LANCAS Easy-clean layers. – Lab application of specified household dirt (oil, mineral, soot) and water spray (without activation by UV light Reference LANCAS Easy-clean Polycarbonate Polycarbonate < 10% cleaning effect ca. 60% cleaning effect LANCAS Easy-clean coating significantly reduces dirt adhesion and thus easiness of cleaning
  16. 16. An active clean effect on other materials Easy Cleanable surfaces have been designed on a wide range of materials. – metals, plastics, wood, textile, glass, stone, … Reference LANCAS Easy-clean anodiuzed aluminium PVC laminated woodLANCAS Easy-clean technology can be applied on a wide range of – heat sensitive – substrates
  17. 17. Summary Durable easy clean(able) surfaces have been designed on various construction materials with a predicted lifetime of more than 5 – 7 years LANCAS specific easy-clean surface actively hinders the dirt pick-up by the substrate, results in cleaner surfaces that are easier to clean. The patented technology for LANCAS Easy-clean technology relies on a flexible atmospheric process with a wide process window, allowing the use on heat sensitive materials. OCAS N.V. – LANCAS, Pres. J.F. Kennedylaan 3, B-9060 Zelzate e: contact@lancas.be www.lancas.be Confidential

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