VOC-free, dispersing agent for water based systems with benchmark performance for inorganic pigments.

1. Dispex® Ultra PX 4575
VOC-free, dispersing agent for waterbased systems with
benchmark performance for inorganic pigments
Formulation Additives
Dispersions & Pigments division
1

2. Dispersing agents
A new solution: Dispex® Ultra PX 4575
Would you like to…
 have a benchmark solution for dispersing inorganic pigments including transparent
iron oxides?
 produce low viscosity pigment concentrates that are universally compatible in full
range of waterbased paints?
 have a highly effective dispersing agent for inorganic pigments for direct grind?
 formulate with a product that outperforms benchmarks?
We have the answer: Dispex® Ultra PX 4575
2

3. Dispex® Ultra PX 4575
Waterbased dispersing agent
 Dispersing agent for waterbased applications
 Benchmark performance for inorganic pigments
 Excellent overall performance for organic pigments
 Broad compatibility towards different resin systems
 Designed with CFRP technology for high efficiency and excellent
stability
 Suited for paints that are VOC-free1 and/or carry Ecolabels2
 Designed for colorants but well suited for direct grinds into
primers, gloss and semi gloss paints and for systems where
polyacrylic acid dispersing agents are not preferred
1 VOC content < 0,1% acc. EU 2004/42 ( b.p. > 250°C) (750 ppm)
2 Compliant with the requirements of the European Ecolabel for “indoor paints and varnishes” 2009/544/EC and for “outdoor
paints and varnishes” 2009/543/EC
3

4. Dispersing agents
Dispex® Ultra PX 4575 – Tailor-made with CFRP
Dispex ® Ultra PX 4575 is based on CFRP technology and a new pigment stabilizing
mechanism that enhances electrosteric stabilization.
CFRP also enables the precise design of the structured polymer to improve compatibility and
stabilizing properties especially for inorganic pigments.
A-Block
stabilizer block
B-Block
pigment affinic block
resin & solvent specific ! pigment specific !
Compatible with paint system, e.g. resins
and solvents
Anchoring onto pigment
Steric
Enhanced
electrosteric
Electrosteric
Dispex® Ultra 4585 Dispex® Ultra PX 4575
4

5. Dispex® Ultra PX 4575
Benefits
Environmental aspects
 VOC-free according to EU 2004/42 1
 APEO-free
 Low odor
 Designed for paints with eco-labels 2
Performance highlights
 Benchmark performance for
transparent iron oxides and other
inorganic pigments
 Excellent pigment concentrate viscosity
 Broad compatibility towards different
resin systems for both industrial and
architectural applications
 Excellent performance for organic
pigments including carbon black
1 VOC content < 0,1% acc. EU 2004/42 ( b.p. > 250°C) (750 ppm)
2 Compliant with the requirements of the European Ecolabel for “indoor paints
and varnishes” 2009/544/EC and for “outdoor paints and varnishes”
2009/543/EC
5

6. Performance tests – Types of paints
 Systems used for checking performance:
 Architectural and wood paints
 Latex gloss paint, pure acrylic  Acronal® LR 9014
 Façade paint, styrene acrylic  Acronal® S 790
 Interior silk paint, vinyl acetate  Mowilith® LDM 1852
 Industrial and automotive coatings
 White, high gloss, stoving coating  Joncryl® 8300 / Luwipal 066
 White, high gloss, self-crosslinking acrylic  Joncryl® 8333
 Commercial, white, semi-gloss wood paint  Modified alkyd urethane
 2-Pack PUR clear coat, aqueous  Luhydran® S 938 T/ Basonat ® HW180PC
6

7. Performance tests – Test methods
Test Method
Viscosity / Stability Measurement of viscosity at various shear rates before and after
storage at 50°C.
Color strength / Rub-out /
Chroma
Addition of pigment concentrate to a white (or black) base paint.
Application on black and white card and check rub-out: Measurement by
colorimeter. Chroma is the saturation of a color, the higher the chroma
the “cleaner” a color.
Transparency / Opacity Measurement of opacity by light absorption. At a value of 100 all light is
absorbed and coating is completely opaque: The lower the opacity
value, the more transparent the coating. dE* scattering is a measure of
light scattered: The lower the value, the higher the transparency.
Gloss Check influence of dispersing agents on gloss of the tinted paints
using a gloss meter .
VOC content EU 2004/42: b.p. > 250°C
EPA 24: 60 min 110°C convection oven
7

8. Viscosity: Sicotrans® Red L2817 (25%)
Dispersant dosage: 10% / 15% / 20% active on pigment
Dispex® Ultra PX 4575 shows lowest viscosity and best stability
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
10,0% 15,0% 20,0% 10,0% 15,0% 20,0% 10,0% 15,0% 20,0% 10,0% 15,0% 20,0% 10,0% 15,0% 20,0% 10,0% 15,0% 20,0%
Dis U PX 4575 B1 B2 B3 B4 E-4585
Viscosity[mPa.s]
at 10/s fresh at 10/s after 2 weeks 50°C
No paste,
too viscous
8

9. Viscosity: Sicotrans® Yellow L1916 (30%)
Dispersant dosage: 15% / 20% / 25% active on pigment
Dispex® Ultra PX 4575 shows lowest viscosity and best stability
0
500
1000
1500
2000
2500
3000
15% 20% 25% 15% 20% 25% 15% 20% 25% 15% 20% 25% 15% 20% 25% 15% 20% 25%
Dis Ultra PX4575 B1 B2 B3 B4 E 4585
Viscosity[mPa.s]
at 10/s fresh at 10/s after 2 weeks 50°C
No paste,
too viscous
No paste,
too viscous
9

10. Transparency: Iron Oxide Yellow and Red
Performance in an acrylic clear system
0
10
20
30
40
50
60
70
80
0.00
5.00
10.00
15.00
20.00
25.00
20% 20% 20% 20% 20% 20%
Dis U
PX
4575
B1 B2 B3 B4 Efka
4585
Glossat60degrees
Opacity
Opacity Gloss
Opacity: The lower the value, the higher the transparency
Sicotrans ® Yellow L1916
0
10
20
30
40
50
60
70
80
0.0
10.0
20.0
30.0
40.0
50.0
60.0
15% 20% 15% 20% 15% 20% 15% 20% 15% 20% 15% 20%
Dis U PX
4575
B1 B2 B3 B4 Efka 4585
Glossat60degrees
Opacity
Opacity Gloss
Sicotrans ® Red L2817
10
Dispex® Ultra PX 4575 shows highest gloss values overall with most
transparency in yellow oxide and comparable transparency in red oxide

11. Dispex® Ultra PX 4575 shows good viscosity and heat stability
Viscosity: Bayferrox® 3920 (55%)
Dispersant dosage: 5% / 10% active on pigment
0
200
400
600
800
1000
1200
1400
1600
5,0% 10,0% 5,0% 10,0% 5,0% 10,0% 5,0% 10,0% 5,0% 10,0% 5,0% 10,0%
Dis Ultra PX 4575 B 1 B 2 B 3 B 4 Efka 4585
Viscosity,mPa.sat10/s
fresh after 2 weeks 50°C
11

12. Concentrate with Bayferrox® 3920 (55%)
Compatibility in architectural coatings
Dispex® Ultra PX 4575 shows excellent color strength* and low rub-out
12
0
0.5
1
1.5
2
2.5
3
3.5
0
20
40
60
80
100
120
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
Dis
Ultra
PX
4575
B 1 B 2 B 3 B 4 Efka
4585
Dis
Ultra
PX
4575
B 1 B 2 B 3 B 4 Efka
4585
Dis
Ultra
PX
4575
B 1 B 2 B 3 B 4 Efka
4585
acrylic dispersion paint styrene acrylic façade paint VAE emulsion paint
Rub-out[deltaE]
Relativecolorstrength[%]
Color strength [%] Rubout [delta E]
*A little higher pigment paste viscosity on previous chart likely due to better color development

13. Concentrate with Bayferrox® 3920 (60%)
Compatibility in industrial coatings
Dispex® Ultra PX 4575 shows excellent color strength and low rub-out
13
0
0.5
1
1.5
2
2.5
3
3.5
0
20
40
60
80
100
120
140
160
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
5,0%
10,0%
Dis Ultra
PX 4575
B 1 B 2 B 3 B 4 Efka
4585
Dis Ultra
PX 4575
B 1 B 2 B 3 B 4 Efka
4585
WB stoving enamel self crosslinking acrylic
Rub-out[deltaE]
Relativecolorstrength[%]
Color strength [%] Rubout [delta E]

14. Viscosity: Special Black® 100 (35%)
Dispersant dosage: 29% / 46% active on pigment
Dispex® Ultra PX 4575 and Dispex® Ultra 4585 show overall good
performance
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
Dispex Ultra
PX 4575
B 1 B 2 B 3 B 4 Efka 4585
Viscosity[mPa.s]
at 10/s fresh at 10/s after 2 weeks 50°C
14

15. Concentrate with Special Black® 100
Compatibility in architectural coatings
Efka® 4585 and Dispex® Ultra PX 4575 show overall best results
15
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
20
40
60
80
100
120
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
Dispex
Ultra
PX
4575
B 1 B 2 B 3 B 4 Efka
4585
Dispex
Ultra
PX
4575
B 1 B 2 B 3 B 4 Efka
4585
Dispex
Ultra
PX
4575
B 1 B 2 B 3 B 4 Efka
4585
acrylic dispersion paint styrene acrylic façade paint VAE emulsion paint
Rub-out[deltaE]
Relativecolorstrength[%]
Color strength [%] Rubout [delta E]

16. Concentrate with Special Black® 100
Compatibility in industrial coatings
Efka® 4585 and Dispex® Ultra PX 4575 show low rub-out and high color strength
16
0
0.5
1
1.5
2
2.5
3
3.5
0
20
40
60
80
100
120
140
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
29%
46%
Dispex
Ultra PX
4575
B 1 B 2 B 3 B 4 Efka 4585 Dispex
Ultra PX
4575
B 1 B 2 B 3 B 4 Efka 4585
WB stoving enamel self crosslinking acrylic
Rub-out[deltaE]
Relativecolorstrength[%]
Color strength [%] Rubout [delta E]

17. Summary:
Dispex® Ultra PX 4575
 Benchmark performance for transparent iron oxides, TiO2 and other
inorganic pigments
 Broad compatibility towards different resin systems for both
industrial and architectural applications
 Excellent performance for organic pigments including carbon black
 Designed with CFRP technology for optimum performance
 Dispex® Ultra 4585 complements Dispex® Ultra PX 4575 offering
benchmark performance for many organic pigments and carbon
black
 With Dispex® Ultra PX 4575 and Dispex® Ultra 4585, coatings
producers can achieve top overall performance with full range of
pigment concentrates that are designed for waterbased
applications
17

18. With Dispex® Ultra PX 4575 added to our
range of little helpers ...
... we can help you achieve more!!
little helpers love
great achievements
Formulation Additives by
BASF
18

19. Disclaimer
 Safety
When 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.
 Note
The 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 quality
of 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.
19

20. BASF Solution Finder Tool
for Formulation Additives
2020
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modifiers, to defoamers, rheology modifiers and film-forming
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