Guide Formulation
- page 1 of 2
Automotive coatings OEM
Primer-surfacer, good stone chip resistance, water dilutable
Basis: Polyurethane
Grinding stage
A 14416.1
Setaqua B E 270
Deionized water
Dimethylethanolamine, 10 % in water
Surfynol 104 E
Additol XW 395
Borchi Gen PP 100
Disperbyk-111
Special Black 4
Sachtleben R-FD-I
Talkum IT extra
SILLITIN Z 86
AKTISIL AM
Aerosil R972
(11)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(9)
(10)
[3]
4.23
16.00
0.60
0.52
0.52
0.47
--0.65
1.38
2.23
11.49
--0.36
[5]
4.23
16.00
0.60
0.52
0.52
0.47
--0.65
1.38
2.23
--11.49
0.36
[7]
4.23
16.00
0.60
0.52
0.52
--0.98
0.65
1.38
2.23
--19.44
0.36
42.81
7.06
5.23
0.96
0.80
95.31
42.81
7.06
5.23
0.96
0.80
95.31
42.81
7.06
5.23
0.96
0.80
103.77
Let-down stage
Bayhytherm 3146
Bayhydrol U 241
Cymel 328
Byk-011
Dimethylethanolamine, 10 % in water
Total parts by weight
Recommendation
Formulation [3]: PVC as usual for precipitated barium sulfate
Formulation [5]: higher gloss and improved stone chip resistance
Formulation [7]: increased solids content
Remarks
For getting a higher pH and herewith a better stability of formulation [7], it may be
necessary to use a higher dosage of dimethylethanolamine.
Preparation
The preparation of the grinding stage was realized by dissolver with adapted bead mill
(15 min, 7.2 m/s). Pre-mix raw materials of the completion in the a. m. order and
incorporate to grinding stage.
(1)
(1)
(3)
(5)
Our applications engineering advice and the information contained in this formulation are based on experience and are made to the best of
our knowledge and belief, they must be regarded however as non-binding advice without guarantee. Working and employment conditions
over which we have no control exclude any damage claim arising from the use of our data and recommendations. Furthermore we cannot
assume any responsibility for patent infringements, which might result from the use of our information.
VM-4/11.2013/6135980
HOFFMANN MINERAL GmbH • P. O. Box 14 60 • D-86619 Neuburg (Donau) • Phone (+49 84 31) 53-0 • Fax (+49 84 31) 53-3 30
Internet: www.hoffmann-mineral.com • e-Mail: info@hoffmann-mineral.com
Guide Formulation
- page 2 of 2
A 14416.1
Technical Data
Fineness of grind
Solids content (w/w)
pH
Flow time (4 mm flow cup, ISO 2431)
µm
%
s
[3]
[5]
[7]
< 10
47.7
8.1
88
< 10
47.5
8.2
102
< 10
52.1
7.4
49
Adjust viscosity with deionized water to approx. 25 s (5 mm) or 30 s (4 mm)
Properties
Stoving conditions: primer-surfacer
Dry film thickness
Pendulum hardness (150 min after stoving)
Gloss 60° (application 1d after completion)
Gloss 60° (application 7d after completion)
Stone chip tests
Stoving:
primer-surfacer on EDP
+ WBC
+ 2K-cc
VDA test method (2 x 500g / 1.5 bar / 45°)
Adhesion primer-surfacer / EDP
Adhesion primer-surfacer / topcoat
10 min 23°C + 30 min 130°C
µm
s
31
104
51
---
29
104
59
66
33
76
65
81
10 min 80°C + 20 min 140°C
10 min 80°C
10 min 23°C + 20 min 135°C
2-3
2-3*
1
2
1-2*
1
1-2
1
1
* = effect of talc
BMW-test (-30°C)
Suppliers
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
---
Bayer MaterialScience
Air Products Chemicals
Allnex
OMG Borchers
Byk Chemie
Orion Engineered Carbons
Sachtleben
Omya
HOFFMANN MINERAL
Evonik Industries
Nuplex Resins
Our applications engineering advice and the information contained in this formulation are based on experience and are made to the best of
our knowledge and belief, they must be regarded however as non-binding advice without guarantee. Working and employment conditions
over which we have no control exclude any damage claim arising from the use of our data and recommendations. Furthermore we cannot
assume any responsibility for patent infringements, which might result from the use of our information.
VM-4/11.2013/6135980
HOFFMANN MINERAL GmbH • P. O. Box 14 60 • D-86619 Neuburg (Donau) • Phone (+49 84 31) 53-0 • Fax (+49 84 31) 53-3 30
Internet: www.hoffmann-mineral.com • e-Mail: info@hoffmann-mineral.com