DOLLMAR S.p.A.

Campinas – september 27th 2011

UCT SpAPARTNERSHIP WITH 3

OTHER CHEMICAL DISTRIBUTORS

BONAZZI SrlCHEMICAL STORAGE

LOCAL DISTRIBUTION

C.I.A.T. SpACHEMICAL STORAGE

LOCAL DISTRIBUTION

C.P.R. SrlRAW MATERIALS FOR

POLYURETHANE SYSTEMS POLYSYSTEM Srl

P.U. SYSTEMS

OXIPOL SrlEPOXY RESINS

ITALTECH SpACLEANING EQUIPMENTS

DOLLMAR MECCANICA Srl

CLEANING AND COATING EQUIPMENTS

AIR PROTECH SrlEFFLUENT GAS

TREATMENT/RECOVERY

CARBODOLL SrlSOLVENT STORAGE FACILITIES TOLL

MANUFACTURE OF SOLVENT MIXTURES

DOLLMAR S.p.A.

Che

mic

als

Resins-polymers

Plants

• To slow the corrosion process and to improve the paintadhesion

• To eliminate the suface conversion based on iron phosphates• To improve the chemical corrosion strenght•To optimize the interaction between the surface conversion

and the paints or cathaphoretic coating avoiding any problemof processes incompatibility.

HIGH & CONSTANT

REAL QUALITY

Plants

SOFT RAINModules

Products

DOLLCOAT SA

nanotechnologies Method

ACETHigh accurancy, fast

and qualtitativequality tests

Organo – FunctionalizedSilanes

Organic – InorganicHybrids

R1OSi

OR1

OR1

R2

R2 = epoxy, aminic, acrylic etc. groupsR1= alcoxy group

Inter Penetrating Network

Organo-functionalized silanes+

“crosslink” molecules

• Space = barrier•Alkoxy-silanes functionalities= Adhesion

Metal oxide

• DOLLCOAT SA 115: multimetal nanotechnologicpassivation

• DOLLCOAT SA 119: Chrome free HDG passivation

• DOLLCOAT SA 121: Chrome free and QUALICOATapproved conversion for aluminium profiles or coil

• DOLLCOAT SA 113: special product with “anti-finger/easy to clean” properties

• Nanosized particles coupled with resins (used indifferent liquid and powder primers)

PretreatmentStandard process

140 °C

150 °C

Phospho-degreasing Tap water Demi water Drying

Phospho-degreasingOr

Alkaline degreaser

New process

Tap water Demi water

140 °C

150 °C

DryingDOLLCOAT SA115Soft Rain

• SOFT RAIN is a nebulization module developped byEUROPLAST

• DOLLMAR is the exclusive representative forEUROPLAST

• European patent was deposed 4 years ago andinternational patent is pending

CONTROL UNITNEBULIZATION

NOOZLES

MIXING TANK

These special noozles assure an optimal application for DOLLCOATSA 115 using only 5 l/hr of a solution of only 0,7-1% in demi water

Nebulization noozles

Potenziodinamic curves

Potenziodinamic curves arte often used toinvestigate material characteristics.Salt spray fog tests are only a qualitativecharacterization and are influenced by manyvariables.Potenziodinamic curves providequantitative data very usefull in order toinvestigate the pretreatment characteristics.Potenziodinamic curves are really replicableand could provide data usefull to comparedifferent pretreatments in a very fast test(few hrs).

ACET method

ACET method

• ACET technique allows to predict anticorrosivebehaviour in 24h.

• ACET technique provides quantitative resultsfor mathematical correlations with NSS andASS.• Equivalent circuit modelization allows to know

quantitatively coating and interface properties.

ACET electrochemical workstation

ACET software

ACET method

COMPAÑIA VALENCIANADE ALUMINIO BAUX

NUBIOLA PIGMENTOS, S.L.

DOLLCOAT SA 115

In the last 5 years this process was adopted by many customersas final passivation for iron, aluminium and HDG.

Old process: after 175 hrs this ironpanel showes a paint detachment

New process: after 800 hrs this ironpassivated panel is still in excellentconditions

SEM CHARACTERIZATION

At 5000x, it’s evident the complex structure of nanotechnologic passivation.

Cataphoresis thickness: 10 µm

Nanotechnologic passivation on a perfectly degreased surface

Changing the composition ofthe alkaline degreaser, thenanotechnologic passivationshows a different aspect and aworse paint adhesion.

Influence of alkaline degreasers

Influence of nebulization

DOLLCOAT SA 115 applied by nebulization (left) and by standard noozles (right) in the same plant.

DOLLCOAT SA SA 119

• Product based on non-fluorinated oligomers• DOLLCOAT SA 119 does not contains any metal, resin, salt or

acid.• DOLLCOAT SA 119 does not shows any symbol or hazard

phrase on the labelling.• pH of the concentrated product and work solution is almost 7• Water vapor is the only process effluent• No effluent to dispose• DOLLCOAT SA 119 is used on hot surfaces (up to 450 °C)

DOLLCOAT SA 119

• Typical coating thickness < 0,1µm (100nm)• Passivated surfaces are colorless and could be immediatly

painted without any further pretreatment• Paint adhesion is excellent• Passivated HDG not painted and stocked in exteriors does not

shows any surface oxidation for at least 2-3 months.• DOLLCOAT SA 119 is allways compatible with any other

potential pretreatment applied after a long external exposition

DOLLCOAT SA 119 + SOFT RAIN

DOLLCOAT SA 119 + SOFT RAIN

DOLLCOAT SA 119 + SOFT RAIN

SEM Characterization

SEM Characterization

ACET analysis

DOLLCOAT SA 121Chrome free QUALICOAT pretreatment

• DOLLCOAT SA 121 was originallyformulated for aluminium coil conversion

• DOLLCOAT SA 121 is an approvedQUALICOAT pretreatment

• DOLLCOAT SA 121 contains synthesisoligomers in order to improve paintadhesion and chemical corrosion resistence.

• Paint adhesion is a critical problem inaluminium coil specially for the postforming phase. Sometimes this problemcould occours also on twisted profiles

• DOLLCOAT SA 121 could be used also ondie cast aluminium with good results.

DOLLCOAT SA 121

Paint adhesion could became a dramatic problem in coil coating

DOLLCOAT SA 121:Paint Adhesion

DOLLCOAT SA 121:SEM characterisation

DOLLCOAT SA 113 - EASY TO CLEAN

• Product based on non-fluorinated oligomers• Typical coating thickness < 0,1µm (100nm)• Colorless• UV resistant• Very low surface tension• Excellent scratch resistence• Dollcoat SA 113 could be used on any metal

DOLLCOAT SA 113 - EASY TO CLEAN

Finger prints are evident on upper (not treated) part of the steel panel

DOLLCOAT SA 113 – antigraffiti

The right side of the steel panel was treated with DOLLCOAT SA 113. His very low surface tension avoid a good adhesion of inks and paints.

DOLLCOAT SA 115 on magnesium

DOLLCOAT SA 115 is evident because of the yellow-violet iridescent color change.

49

DOLLCOAT SA 113 on magnesium

DOLLCOAT SA 113 is colorless

Anticorrosive properties are in anycase very good.

This property could be usefull ifan excellent passivation isneeded and it’s not possible topaint the surface.

DOLLCOAT SA 113: corrosion test

The rights side of the iron panel was treated withDOLLCOAT SA 113 and exposed for 150 hrs in NSS

DOLLCOAT SA 113: corrosion test

DOLLCOAT SA 113: potential applications

• Mechanics• Handles• Taps•Automotive• Kitchen parts•Architectural applications