Ultra-low SVOC, emulsion defoamer for medium to high PVC architectural coatings

1. 150 years
FoamStar® ED 2523
Ultra-low SVOC, emulsion defoamer for medium to high PVC
architectural coatings
Formulation Additives
Dispersions & Pigments division
European Coatings Show 2015

2. 150 years
Content
 Defoamer – Basic definitions
 Today‘s requirements for defoamers
 BASF defoamer portfolio
 FoamStar ® ED 2523 – Ultra-low SVOC, emulsion defoamer for
medium to high PVC architectural coatings
2

3. 150 years
Defoamer – Basic definitions
Origin of foam
 Dispersion
 Mixing & stirring
 Pumping & recirculation
 Application
Effects
 Decreased milling efficiency
 Increased production time
 Incorrect filling levels
 Film deficiency
3

4. 150 years
Defoamer – Basic definitions
Hydrophobic solidLamella Mineral oilLamella
Entering
Spreading Rupture of Lamella
 A defoamer is a surface-active agent that destroys foam after it has formed.
An antifoam agent is an additive that prevents foaming. The key to
defoaming is to disrupt the surfactant stabilized foam lamella.
Mechanism of defoaming
4

5. 150 years
Today‘s requirements for defoamers
Environmental aspects
 Free of volatile organic compounds
 APEO-free
 No/low SVOC*
 No/low odor
* S-VOC = semi-volatile organic content
Performance requirements
 Defoaming efficiency and persistency
 Excellent compatibility
 No fogging
 No effect on gloss
 Product stability
 Easy to handle
 Broad applicability
5

6. 150 years
BASF defoamer portfolio
Chemistry Product Range Characteristics
Oil based defoamers
Foamaster®
Efka®
Universal, classical mineral oil and natural oil
based defoamers
Silicone defoamers
Dehydran®
Efka®
High gloss and industrial coatings, printing inks
Emulsion defoamers
Dehydran® SE
FoamStar® ED
Universal, easy to incorporate, free of mineral oil
(Star-) Polymer-based
defoamers
FoamStar® High performance
Powder defoamers
Foamaster® PD
Dehydran®
Powder-type products
6

7. 150 years
FoamStar® ED 2523
Would you like to…
 replace mineral oil based defoamers with a state-of-the-art, eco-friendly
alternative that delivers uncompromising performance?
 formulate your paints with a globally VOC-free and ultra-low SVOC
defoamer?
We have the answer: FoamStar® ED 2523
7

8. 150 years
FoamStar® ED 2523 - Positioning
PVC Range
Compatibility
80% 15%
80% PVC Range 15%
High PVC FoamStar® MO 2150 Foamaster® NO 2335 FoamStar® ED 2521
High to
medium
PVC
Foamaster® MO 2134 Foamaster® WO 2323 FoamStar® ED 2523
Medium to
low PVC FoamStar® SI 2292
FoamStar® SI 2210
FoamStar® SI 2293
FoamStar® ST 2438
FoamStar® ED 2522
Features:
Contains mineral oil
or solvents
Features:
Natural oil based,
white oil based,
VOC-free
Features:
Emulsion technology,
Star technology,
low SVOC
Defoamers for water-based architectural coatings:
Innovation
8

9. 150 years
9
FoamStar® ED 2523 - Benefits
Environmental aspects
 Emulsion defoamer technology – does
not contain mineral oils
 APEO-free
 VOC-free according to EU 2004/42* &
US-EPA 24**
 Ultra-low SVOC*** (approx. 2000 ppm)
 No odor
 Designed to be used in paints with eco-
labels
Performance highlights
 Excellent foam suppression in premium
flat and semi-gloss paints based on
acrylic, styrene acrylic and vinyl acetate
binder systems
 Excellent long term stability
 Highly compatible
 No fogging
* VOC content < 0,1% acc. EU 2004/42 ( b.p. > 250°C)
** VOC content < 0,4% acc. to EPA 24 (60 min 110°C convection oven)
*** SVOC content acc. to TÜV test (acc. to DIN 11890)

10. 150 years
FoamStar® ED 2523 - Product characteristics
Property Method Data
Appearance Visual White emulsion
Viscosity Brookfield LVT sp. 3/30 rpm @ 25°C 1500-2500 mPa.s
Density ISO 2811-3 @ 25°C 0.95-1.05 g/cm³
Solid content ISO 1625 ~ 27,5%
VOC* according to SVOC**
EU 2004/42 EPA 24 (US)
No (< 0,1%) No (< 0,4%) Approx. 2000 ppm (ultra-low)
* VOC content < 0,1% acc. EU 2004/42 ( b.p. > 250°C)
VOC content < 0,4% acc. to EPA 24 (60 min 110°C convection oven)
** SVOC content acc. to TÜV test (acc. to DIN 11890)
10

11. 150 years
FoamStar® ED 2523 – Test results
 Proven excellent results in 5 different paint and coating systems:
 Matt interior paints based on:
 Styrene acrylic  Acronal® 290 D
 Styrene acrylic  Acronal® S 790
 Vinyl acetate (EVA latex) Mowilith® LDM 1871
 Matt interior thixotropic paint based on Acronal® S 559
 Exterior paint based on Acronal® DS 6266
11

12. 150 years
Test methods - Part I
Test Method
Defoaming density Measurement of density via density cup after stirring the paint 3 min at
5000 rpm
Defoaming sponge roller test Visual check of foam stability after drying of the film applied with a
sponge roller (10-20g)
Long term stability Sponge roller test after heat aging of the paint for 2 weeks at 40°C
VOC content EU 2004/42: b.p. > 250°C
EPA 24: 60 min 110°C convection oven
SVOC content GC/MS analysis after solvent extraction (Hexane/Acetone); evaluation of
all substances in the retention area of C 16 to C 22
12

13. 150 years
Matt interior paint based on Acronal® 290 D
 Density tests:
After mixing for 180 sec at 5000 rpm
Defoamer dosage: 0,3%
 Storage stability tests:
Density after 2 weeks at 40°C and mixing for
180 sec at 5000 rpm
FoamStar® ED 2523 shows good
anti-foaming properties.
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.40
1.45
1.50
1.55
1.60
1.65
1.70
13

14. 150 years
Matt interior paint based on Acronal® 290 D
 Sponge roller tests:
Rating: 1= lots of foam / 5 = no foam
 Initial application of 20 gr. paint on PE film
 Validation tests after 2 weeks heat aging at
40°C
FoamStar® ED 2523 shows good
defoaming results in the sponge
roller test.
0.0
1.0
2.0
3.0
4.0
5.0
0.0
1.0
2.0
3.0
4.0
5.0
14

15. 150 years
Matt interior paint based on Acronal® S 790
 Density tests:
After mixing for 180 sec at 5000 rpm.
Defoamer dosage: 0,3%
 Storage stability tests:
Density after 2 weeks at 40°C and mixing for
180 sec at 5000 rpm
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00
0.20
0.40
0.60
0.80
1.00
1.20
FoamStar® ED 2523 shows
excellent anti-foaming properties
and a good storage stability.
15

16. 150 years
Matt interior paint based on Acronal® S 790
 Sponge roller tests:
Rating: 1= lots of foam / 5 = no foam
 Initial application of 20 gr. paint on PE film
 Validation tests after 2 weeks heat aging at
40°C
FoamStar® ED 2523 shows
excellent defoaming performance
and long term persistance.
0.0
1.0
2.0
3.0
4.0
5.0
0.0
1.0
2.0
3.0
4.0
5.0
16

17. 150 years
Matt interior paint based on
Mowilith® LDM 1871
 Density tests:
After mixing for 180 sec at 5000 rpm.
Defoamer dosage: 0,3%
 Storage stability tests:
Density after 2 weeks at 40°C and mixing for
180 sec at 5000 rpm
FoamStar® ED 2523 shows the
best anti-foaming efficiency
immediately and after storage.
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.25
1.30
1.35
1.40
1.45
1.50
1.55
17

18. 150 years
Matt interior paint based on
Mowilith® LDM 1871
 Sponge roller tests:
Rating: 1= lots of foam / 5 = no foam
 Initial application of 20 gr. paint on PE film
 Validation tests after 2 weeks heat aging at
40°C
FoamStar® ED 2523 shows good
defoaming properties and
excellent efficacy after storage.
0.0
1.0
2.0
3.0
4.0
5.0
0.0
1.0
2.0
3.0
4.0
5.0
18

19. 150 years
Test methods - Part II
Test Method
Defoaming density Measurement of density via density cup after stirring the paint 5 min at
2000 rpm
Drawdown on Glass (240 µm) Visual check of foam appearance after drying of the film; after
production and after storage 2 weeks at 50°C
19

20. 150 years
Matt interior thixotropic paint based on
Acronal® S 559
 Density tests:
After mixing for 5 min at 2000 rpm.
Defoamer dosage: 0,4%
FoamStar® ED 2523 shows comparable anti-foaming properties to
benchmarks.
1.29
1.3
1.31
1.32
1.33
1.34
1.35
1.36
1.37
1.38
wo
defoamer
FoamStar
ED 2523
Defoamer 1 Defoamer 2
20

21. 150 years
Matt interior thixotropic paint based on
Acronal® S 559
 Foam knock down / air-release:
Rating: 1= lots of foam / 5 = no foam
 Initial application of 240µm film on glass
 Validation tests after 2 weeks of heat aging
at 50°C
FoamStar® ED 2523 shows comparable performance to
benchmarks.
0
1
2
3
4
5
6
wo
defoamer
FoamStar
ED 2523
Defoamer
1
Defoamer
2
after 24h after 2 weeks 50°C
21

22. 150 years
Exterior paint based on Acronal® DS 6266
 Density tests:
After mixing for 5 min at 2000 rpm.
Defoamer dosage: 0,4%
FoamStar® ED 2523 shows comparable anti-foaming properties to
benchmarks.
1.3
1.32
1.34
1.36
1.38
1.4
1.42
1.44
wo
defoamer
FoamStar
ED 2523
Defoamer
1
Defoamer
2
22

23. 150 years
Exterior paint based on Acronal® DS 6266
 Foam knock down / air-release:
Rating: 1= lots of foam / 5 = no foam
 Initial application of 240µm film on glass
 Validation tests after 2 weeks of heat aging
at 50°C
FoamStar® ED 2523 shows comparable defoaming performance to
benchmarks.
0
1
2
3
4
5
6
wo
defoamer
FoamStar
ED 2523
Defoamer 1Defoamer 2
after 24h after 2 weeks 50°C
23

24. 150 years
24
Top performance of FoamStar® ED 2523
Environmental aspects
 Emulsion defoamer technology – does
not contain mineral oils
 APEO-free
 VOC-free according to EU 2004/42* &
US-EPA 24**
 Ultra-low SVOC*** (approx. 2000 ppm)
 No odor
 Designed to be used in paints with eco-
labels
Performance highlights
 Excellent foam suppression in premium
flat and semi-gloss paints based on
acrylic, styrene acrylic and vinyl acetate
binder systems
 Excellent long term stability
 Highly compatible
 No fogging
* VOC content < 0,1% acc. EU 2004/42 ( b.p. > 250°C)
** VOC content < 0,4% acc. to EPA 24 (60 min 110°C convection oven)
*** SVOC content acc. to TÜV test (acc. to DIN 11890)

25. 150 years
25
 This tool provides you the best additive solution for your
challenging formulation task :
• From dispersing agents, wetting agents and surface
modifiers, to defoamers, rheology modifiers and film-forming
agents
 Explore the BASF formulation additives portfolio for the
paints and coatings industry, by :
• Receiving recommendations for your formulation challenges
• Understanding the main benefits of our products by
application and get technical information
• Ordering samples or contacting us for more detailed
consultations
Check out our Solution Finder Tool on www.basf.com/formulation-additives
BASF Solution Finder Tool
for Formulation Additives

26. 150 years
150 years