Hydropalat® WE 3500

150 years

Hydropalat® WE 3500

State-of-the-art, fluoro-polymer leveling agent with excellent wetting properties in water-based coatings

Formulation AdditivesDispersions & Pigments Division

European Coatings Show 2015

150 years

Hydropalat® WE 3500 – State-of-the-art, fluoro-polymer leveling agent with excellent wetting properties in water-based coatings

Wetting agents and surface modifiers – Basic definitions

Wetting agents and surface modifiers – Performance benefits

Summary

Hydropalat® WE 3500 – Proven performance

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Summary


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Hydropalat® WE 3500Waterbased leveling and wetting agent

Excellent surface leveling

Excellent substrate wetting

Anti-cratering

Low foam stabilization

Maintains excellent adhesion while improving wetting

Designed for high-end water based industrial coatings applications

Proven performance for 1-Pack waterbased acrylic and 2-Pack waterbased polyurethane dispersion

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Summary


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Dynamic Wetting Leveling

- Main influencing factors- Rheology- Surface tension

For fast application methods as roll coatings, printing or spraying high mobility towards this interface is required for substrate wetting agents to be effective.A good indication of the mobility and the effect of a substrate wetting agent is given by the dynamic surface tension.

-Related defects- Orange peel, Waviness,

Pinholes, decreased Gloss,…

Wetting agents and surface modifiers Basic definitions

High mobility

Only partially at interface → Partial Wetting

Completely at interface → Complete Wetting

Low mobility

Complete leveling

Bad leveling

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Summary


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Wetting agents and surface modifiersA new solution: Hydropalat WE® 3500

Would you like to…

have a solution for excellent surface leveling and substrate wetting for low VOC waterbased coatings?

avoid side effects like cratering, foam stabilization or impaired intercoat adhesion?

derive benefits of fluoro-polymer grade performance while meeting the environmental standards by avoiding long chain perfluorinated building blocks?

We have the answer: Hydropalat® WE 3500

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Hydropalat ® WE 3500 Benefits

Environmental aspects

Polymer based

Solvent-free

APEO-free

Based on short chain perfluorinated building blocks (PFOA-free)

Performance highlights



Anti-cratering


Excellent intercoat adhesion

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Summary


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Content

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Summary: Hydropalat® WE 3500Waterbased wetting and leveling agent



Anti-cratering


Maintains excellent adhesion while improving wetting

Designed for high-end water based industrial coatings applications

Proven performance for 1-Pack waterbased acrylic and 2-Pack waterbased PU

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Summary


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Performance tests – Tested systems Industrial Coatings Applications

Test system type Dispersion1-Pack waterbased acrylic Acronal® Pro 761

2-Pack waterbased PU Luhydran® S 938T and Basonat® W 180 PC

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Performance tests –Leveling and wetting agents tested

NameActive content [wt.%]

Chemistry

Hydropalat® WE 3500 60 Fluorocarbon-modified polyacrylate

Hydropalat® WE 3370 (Efka® 3570 N)

60 Fluorocarbon-modified polyacrylate

Product A 55 Highly fluoro-modified acrylic copolymer; amine neutralized

Product B 50 Fluorinated acrylic resin; amine neutralized

Product C 90 Non-ionic , polymeric fluoro surfactant

Product D 100 Modified PDMS (polydimethyl siloxane)

Product E 95 Modified PDMS (polydimethyl siloxane)

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Performance tests – Test methods

Performance Test Method

Foam behavior Samples stirred for 6 minutes@5000 rpm followed by measurement of weight and volume to calculate density

Substrate wetting

Assessment 1: Wetting limitsSpray application of an increasing film thickness (wedge) on coil coated Al panels; measurement of the lowest film thickness when the substrate is completely wettedAssessment 2: Wetting behavior on pretreated PET-foilSpiral coater application on PET-foil pretreated with a solution of a release agent; assessment of wetting defects after film drying

Anti-cratering Post contamination of the formulations with mod. PDMS, spiral coater application on PE-foil; judgment of craters after film drying

Leveling Automated spray application on coil coated Al panels @ dry film thickness at 30-35µm; measurement of w-values as well as LW/SW with wave-scan DOI

Intercoat adhesionSpiral coater application on e-coat panels; curing at relevant temperatures; humidity cabinet for 5 days; after 1d at standard conditions conduct cross-hatch adhesion test

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Tested System:1-Pack WB acrylic

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0

5

10

15

20

25

30

35

40

45SW - 0.5wt%LW - 0.5wt%

Leveling performance of 1-Pack WB acrylicSW / LW on coil coated Al panels

0

5

10

15

20

25

30

35

40

45

LW/S

W a

t 30-

35µm

SW - 0.1wt%LW - 0.1wt%

Dosage level: 0.1% / 0.5% active in a 1-Pack acrylic; lower LW/SW values mean smoother coating

Hydropalat® WE 3500 improves leveling even at low additive level

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Leveling performance of 1-Pack WB acrylicWavescan results on coil coated Al panels Dosage level: 0.5% active in a 1-Pack acrylic; lower and flatter curve means very good leveling

0

10

20

30

40

50

60

Wa 0.1-0.3mm Wb 0.3-1.0mm Wc 1-3mm Wd 3-10mm We 10-30mm

W-v

alue

s at

30-

35µm

Blank Hydropalat WE 3500 Hydropalat WE 3370(Efka 3570 N)

Product A Product B Product C

Product D Product E

0.5wt%

Hydropalat® WE 3500 and WE 3370 show excellent leveling performance @ 0.5%

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Substrate wetting of 1-Pack WB acrylicon contaminated PET foil

0

1

2

3

4

5

6

7

8

9

Blank HydropalatWE 3500

Hydropalat WE 3370(Efka 3570 N)

Product A Product B Product C Product D Product E

Wet

ting

perf

orm

ance

rank

ing

0.1wt% 0.5wt% 1.0wt%

1 = good wetting, 8 = no wetting

Spiral coater application on contaminated PET foil, ranking8 = bad0 = excellent

Dosage level: 0.1% / 0.5% / 1.0% active in a 1-Pack acrylic

Hydropalat® WE 3500 shows excellent substrate wetting even at low additive level

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Anti-crater performance of WB acrylic Post contaminated with modified PDMS

0

1

2

3

4

5

6

7

8

9


HydropalatWE 3370

(Efka 3570N)


Antic

rate

ring

perf

orm

ance

rank

ing

0.1wt%0.5wt%1.0wt%

Craters: 1 = very good, 8 = very bad

Dosage level: 0.1% / 0.5% / 1.0% active in a 1-Pack acrylic

Hydropalat® WE 3500 shows excellent anti-crater performance

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Intercoat adhesion of 1-Pack WB acrylicAdhesion on ED coated panelsDosage level: 0.5% / 1.0% active in a 1-Pack acrylic; Cross hatch adhesion: GT 0 = perfect GT 5 = delamination

Hydropalat® WE 3500 maintains excellent adhesion to ED coating

0

1

2

3

4

5

Bla

nk

Hyd

ropa

lat W

E 3

500

Hyd

ropa

lat

WE

3370

(Efk

a 35

70 N

)

Pro

duct

A

Pro

duct

B

Pro

duct

C

Pro

duct

D

Pro

duct

E

Hyd

ropa

lat W

E 3

500

Hyd

ropa

lat

WE

3370

(Efk

a 35

70 N

)

Pro

duct

A

Pro

duct

B

Pro

duct

C

Pro

duct

D

Pro

duct

E

0,5 1

Cro

ss h

atch

adh

esio

n [G

T]

100°C Ranking

100°C + humidity test Ranking

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Foam stabilization of 1-Pack WB acrylicDensity after high speed mixing

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8


HydropalatWE 3370

(Efka 3570N)


Den

sity

[g/m

l]

0.1wt%0.5wt%1.0wt%

Dosage level: 0.1% / 0.5% / 1.0% active in a 1-Pack acrylic; Higher density = better

Product C is the best but Hydropalat® WE 3500 shows comparable foam stabilization to other benchmarks and the blank

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Tested System:2-Pack WB PU

2-Pack WB PU

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high

low

Film thickness

Wetting limit

Wetting limitsSpray application of an increasing film thickness (wedge) on coil coatedaluminum panels,

measurement of the lowest film thickness when the substrate is completely wetted:

The lower the number, the better the wetting

Performance tests – Wetting limits

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Wetting limits on coil coated Al panels Wetting of 2-Pack WB PU

0

5

10

15

20

25

30

35

Blank Hydropalat WE3500

Hydropalat WE3370

(Efka 3570 N)


Film

thic

knes

s [µ

m]

0.1%wtactive

Incorporationissue

Dosage level: 0.1% / 1.0% active in a 2-Pack PU

Hydropalat® WE 3500 shows excellent dynamic wetting performance

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Hydropalat® WE 3500 maintains excellent intercoat adhesion

Spiral coater application on ED-coat panels,Curing at 140 °CHumidity cabinet for 5 days

Cross hatch adhesion test

With Hydropalat WE 3500[GT] = 0

With competition product B and D [GT] = 2

Intercoat adhesion of 2-Pack WB PUAdhesion to ED coating- Visual example

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Intercoat adhesion of 2-Pack WB PUAdhesion on ED coated panelsDosage level: 0.2% / 0.5% / 1.0% active in a 2-Pack PU

0

0.5

1

1.5

2

2.5

Blan

k

Hyd

ropa

lat

WE

3500

Prod

uct B

Prod

uct C

Prod

uct D

Prod

uct E

Hyd

ropa

lat

WE

3500

Prod

uct B

Prod

uct C

Prod

uct D

Prod

uct E

Hyd

ropa

lat

WE

3500

Prod

uct B

Prod

uct C

Prod

uct D

Prod

uct E

0 0,2 0,5 1

Cro

ss h

atch

test

rank

ing

[GT]

120°C Ranking

140°C Ranking

Hydropalat® WE 3500 maintains excellent adhesion to ED coating

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0

0.1

0.2

0.3

0.4

0.5

0.6

0.7


HydropalatWE 3370

(Efka 3570 N)


Des

ity [g

/ml]

0.1%wtactive

All products show comparable foaming to blank

Dosage level: 0.2% / 0.5% / 1.0% active in a 2-Pack PU

Foam stabilization in 2-Pack WB PUDensity after high speed mixing

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Hydropalat® WE 3500Product characteristics

Property Method DataAppearance Visual clear to slightly hazy

yellowish liquidColor Gardner (20°C) X 237 ≤ 5Density X230 (20°C) ~ 1.05 g/cm³Active content X231 1h 120°C ~ 60.0%Acid Value X233 80-100 mg KOH/gNeutralizing agent Dimethyl

ethanolamineUse Level 0.1-0.75%wt

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Wetting agents and surface modifiersFocus products for water-based systems

Efka® FL 3772

Efka® SL 3030

Efka® SL 3200

Efka® SL 3258

Efka® SL 3288

Efka® SL 3299



Hydropalat® WE 3220/3221




Slip Foam stabilization Substrate wettingIntercoat adhesion Leveling

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ChemistryProduct Range

old name

Product Range

new nameCharacteristics

Alkoxylated surfactants Hydropalat® Hydropalat® low foaming substrate wetting agents for

waterborne applications

Silicone surfactants

Hydropalat®

Perenol® S

Efka®

Hydropalat®

Efka®

Substrate wetting agents with generally very low static surface tension

Sulfosuccinate Hydropalat® Hydropalat®Cost effective substrate wetting agent with excellent dynamic surface tension decrease

(Fluorinated) polyacrylates

Perenol F®

Efka®

Efka®

Hydropalat®high performance acrylate leveling agents for water borne and solvent borne applications

Star shaped Polymers

StarFactant® Hydropalat® Wetting agents based on special polymers

Wetting agents and surface modifiers BASF portfolio

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Dynamic surface tensionin demi water

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

0,045 s 0,100 s 1,0 s 10,0 s 30,0 s

Sigm

a [m

N/m

]

Bubble life time [s]

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

0,045 s 0,100 s 1,0 s 10,0 s 30,0 sBubble life time [s]

HydropalatWE 3500

HydropalatWE 3370(Efka 3570 N)Product A

Product B

Product C

Product D

Product E

0.1%wt active in water 0.5%wt active in water

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Leveling performance in 1-Pack WB alkydWavescan results on coil coated Al panels

Dosage level: 1.0% active in a 1-Pack alkyd

0.0

10.0

20.0

30.0

40.0

50.0

60.0

Wa 0,1-0,3mm Wb 0,3-1,0mm Wc 1-3mm Wd 3-10mm We 10-30mm

W-v

alue

s at

20-

25µm

Blank

Hydropalat WE 3500

Hydropalat WE 3370(Efka 3570 N)Product A

Product B

Product C

Product D

Product E

1.0%wt active

Hydropalat® WE 3370 is very good for leveling performance in 1-Pack alkyd

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Leveling performance of 2-Pack WB PUWavescan results on coil coated Al panels Dosage level: 0.1% active in a 2-Pack PU

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

Wa 0,1-0,3mm Wb 0,3-1,0mm Wc 1-3mm Wd 3-10mm We 10-30mm

W-v

alue

s at

30-

35µm

film

thic

knes

s

Blank

Hydropalat WE 3500

Hydropalat WE 3370(Efka 3570 N)

Product A

Product B

Product C

Product D

Product E

0.1 wt%

All products are comparable but Hydropalat® WE 3370 is better @ long wavelength

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Disclaimer

SafetyWhen handling the mentioned products, please comply with the advice and information given in the safety data sheets and

observe protective and workplace hygiene measures adequate for handling chemicals.

NoteThe data contained in this publication are based on our current knowledge and experience. In view of the many factors that may

affect processing and application of our products, these data do not relieve processors from carrying out their own investigations and tests; neither do these data imply any guarantee of certain properties, nor the suitability of the product for a specific purpose. Any descriptions, drawings, photographs, data, proportions, weights, etc. given herein may change without prior information and do not constitute the agreed contractual quality of the product. The agreed contractual qualityof the product results exclusively from the statements made in the product specification. It is the responsibility of the recipient of our product to ensure that any proprietary rights and existing laws and legislation are observed.

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