Durable easy-clean surfacesfor the building industry

Franz HörzenbergerOCAS, ArcelorMittal Global R&D (Ghent, B)

Sirris Smart coating lab – May 19, 2011

Confidential

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 ArcelorMittal

Dirty surfaces impact

… aesthetics (colour/gloss change)

… visibility (impact on transmission)

… energy savings (heat flow)

… yield (conversion of sun light)

It is about dirt …

Pollution of the surface over time greatly impacts the aesthetics, visibility and transparancy

… and a new concept to keep surfaces clean

Various concepts on material surfaces have been put forward for improving the anti-stain properties.

activation by UV(sunlight)

Active TiO2

Oleophilic

Oleophobic

HydrophobicHydrophilic

‘Sol/gel’Siliconepolymer

F-basedsolutions

Limitations related to current available technologies limit a broad commercial roll-out

Various concepts on material surfaces have been put forward for improving the anti-stain properties.

LANCAS Easy-clean technology is based on the unique combination of durable hydrophilic and oleophobic properties of the coating.

Active TiO2

Oleophilic

Oleophobic

HydrophobicHydrophilic

L A N CA SEasy-clean

‘Sol/gel’Siliconepolymer

F-basedsolutions

LANCAS combines unique properties to ensure optimal and durable easy-clean surfaces

… and a new concept to keep surfaces clean

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Reference

easy clean

A new concept based on nano-technology

LANCAS Easy-clean functionality is obtained by applying a transparent nano-meter thick coating to the substrate material and provides the surface with highly improved and durable anti-stain properties.

The LANCAS Easy-clean coating can be applied for both in- and outdoor applications.

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/… Glass

LANCAS Easy-clean coating is a nano-thin and invisible coating

A new concept based on an efficient process

LANCAS Easy-clean process techology has distinct competitive advantages compared to the alternative application technologies

L A N C A SEasy-clean

log t, s1 10 10 ² 10 ³ 104

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sol/gelnano

sol/gelnano

― Applicable to a wide range of substrates, including heat-sensitive substrates

― Wide process-speed window and atmospheric processing allows for in-line processing on existing production lines

― Green process (no VOCs, dry)

LANCAS Easy-clean process allows for in-line istallations and cost-competitive application

sec min hours

An active clean effect on short term

Outdoor testing demonstrates an immediate and a highly visible effect of LANCAS Easy-clean coating on painted metal.

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)

Reference LANCAS Easy-clean

stripes

Painted metal samples

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after 1 month outdoor exposure in Liege/Belgium

LANCAS Easy-clean effect immediately results in improved aesthetics of the substrate

An active clean effect on mid term

Outdoor testing demonstrates a durable effect of

LANCAS Easy-clean coating on painted metal

LANCAS' Easy Clean

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LANCAS Easy-cleanReference

Original aesthetics of painted surfaceis kept during 2 years and over

LANCAS Easy-clean technology results in long lasting anti-stain properties

An active clean effect on mid-term

PC Reference

PC LANCAS'

Easy Clean

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duration (# weeks)

Outdoor testing indicates a durable effect of LANCAS Easy-clean coating on transparent plastic materials (e.g. polycarbonate, PMMA, …)

Lancas Easy-clean coating ensures higher transparency over long period of time thanks to avoidance of dirt pick-up by the surface.

In addition, the initial transparency can be increased by the nano coating

Example of application:

LANCAS Easy-clean technology can provide improved transmission on transparant substrates

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.

Remark: the LANCAS Easy-clean layers for this sample have not been optimised for good easy clean behaviour and increase of transmission.

ConfidentialLANCAS Easy-clean coating avoids transmission reduction by dirt adhesion on transparant substrates

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outdoor exposure months

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glass reference Easy Clean glass

Standardised lab testing by 1 preveals excellent cleaning efficiencyfor LANCAS Easy-clean layers.

– Lab application of specified city dirt and simulation of rainfall

(without activation by UV light)

Reference Polycarbonate

LANCAS Easy-clean Polycarbonate

An efficient easy clean effect

< 15% cleaning effect 85 - 95% cleaning effect

1 Cleaning Technology institute in Krefeld/Germany

LANCAS Easy-clean coating ensures dirt on the substrate is removed with rainfall

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.

Confidential

carbon black testing area

accelerated UV testing area

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LANCAS Easy-clean

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Easy-cleanReference

Test:impregnation with carbon black solution

Accelarated testing indicates the durable effect of the LANCAS Easy-clean technology

Standard cleaning has no impact on the LANCAS Easy-clean coating.

Confidential

An easy clean effect

LANCAS Easy-clean coating makes cleaning easier.

Method Load # Cycles Result

Scotch-brite

soft

No 1000 OK

0.2 kg 1000 OK

Scotch-brite

abrasive

No 1000 OK

0.2 kg 100 Attack

Nylon brush

No 1000 OK

0.2 kg 1000 OK

Easy Clean stainless

(detergent)

stainless (detergent)

stainless (no

detergent)

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Flow cleaning time (s)

LANCAS Easy-clean technology facilitates removal of dirt and oil

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 Polycarbonate

LANCAS Easy-cleanPolycarbonate

An easy clean effect

< 10% cleaning effect ca. 60% cleaning effect

LANCAS Easy-clean coating significantly reduces dirt adhesion and thus easiness of cleaning

An active clean effect on other materials

Reference

LANCASEasy-clean

anodiuzed aluminium PVC laminated wood

Easy Cleanable surfaces have been designed on a wide range of materials.

– metals, plastics, wood, textile, glass, stone, …

LANCAS Easy-clean technology can be applied on a wide range of – heat sensitive – substrates

Confidential

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