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FUNCTIONAL FILLERS FOR COATINGS
VM-7/09.2010/06104980 E
Publisher: HOFFMANN MINERAL GmbH Muenchener Strasse 75 · 86633 Neuburg (Donau) · Germany Phone +49 ( 0 ) 84 31-53-0 · Fax +49 ( 0 ) 84 31-53-3 30 info@hoffmann-mineral.com · www.hoffmann-mineral.com
Structure and Mineralogical Composition
The Genesis of Neuburg Siliceous Earth
Neuburg Siliceous Earth is a raw material with a history one that started 95 million years ago! At that time, large parts of South Germany were covered by the sea, and in a bay within what is now Bavaria, the various strata of Neuburg Siliceous Earth were deposited on limestone sediment dating from the later Jurassic period (fig. 1). After the sea receded, the limestone strata collapsed, forming so-called karst funnels into which the siliceous earth fell and was preserved (fig. 2). This is where a raw material was created which wherever you search for it on this earth is totally unique (fig. 3).
fig. 1
Classic Neuburg Siliceous Earth also called Sillitin and Sillikolloid is a natural combination of corpuscular, crypto-crystalline and amorphous silica and lamellar kaolinite: a loose structure impossible to separate by physical methods. As a result of natural formation, the silica portion exhibits a round grain shape and consists of aggregated crypto-crystalline primary particles of about 200 nm diameter which are covered by amorphous silica opal-like. Such a unique structure is responsible for a relatively high specific surface area and oil absorption, which result, besides rheological activity, also in a whole range of application advantages.
fig. 2
Stratum Stratum Stratum Stratum Stratum Stratum
1: 2: 3: 4: 5: 6:
Fine sand Siliceous Earth Coarse sand Clay Limestone Overburden
fig. 3
2
3
The Separation Process
9 1 8 7 2 3 4 5
10 11
12
6
Step 13:
Charging and crushing of raw earth, separation of coarse material by vibrator screens. Dissolving, separation of gravel fractions and dispersion in water.
Step 6:
Separation of sand fractions and classification into different grain sizes by hydrocyclones.
Step 45:
Step 710: Densification, storage and blending of individual product types in the form of slurry. Step 1112: Removal of water in filter presses; elimination of residual water in dryers.
4
5
Neuburg Siliceous Earth our Range at a Glance
The following table and diagram summarize the physical properties and the chemical composition of the Neuburg Siliceous Earth. The most important variations are particle size and color.
The Neuburg Siliceous Earth is available in four different grain fractions.
D(x) in % 100 90 80 70 60 50 40 30 20 10 x in m 0 50 20 10 1 0.5 0.2 0.1
4.0 3.0 1.9 1.5
18.0
16.0
9.0
6.0
97 %
50 %
Sillitin V
Sillitin N
Sillitin Z
Sillikolloid P
The determination of these particle size distributions was based on Fraunhofer diffraction spectra. The analyses were run on a laser instrument Master-sizer S from Malvern.
6
7
Neuburg Siliceous Earth our Range at a Glance
Furthermore the Neuburg Siliceous Earth is available in a range of color shades from yellow to off-white to white, according to particle size distribution.
V 88
Z 89
increasing color neutrality
N 87 Z 86 V 85 N 85
P 87
N 82
decreasing medium grain size
Sillitin V
Sillitin N
Sillitin Z
Sillikolloid P
8
9
Product Characteristics of
and
Characteristics
Unit
Method
Sillitin V 85 82 76 4.0 18.0 25 5 0.5 65 2.6 0.35 0.60 8 45 7/2.5 45 1.55 insoluble 0.4
Sillitin V 88 86 88 4.0 18.0 25 5 0.5 70 2.6 0.30 0,60 8 45 7/2.5 40 1.55 insoluble 0.4
Sillitin N 82 77 65 3.0 16.0 25 5 0.5 70 2.6 0.30 0.50 11 45 7/2.5 40 1.55 insoluble 0.5
Sillitin N 85 82 75 3.0 16.0 25 5 0.5 70 2.6 0.30 0.50 10 45 7/2.5 35 1.55 insoluble 0.5
Sillitin N 87 83 76 3.0 16.0 20 5 0.5 70 2.6 0.30 0.50 10 45 7/2.5 35 1.55 insoluble 0.5
Sillitin Z 86 82 75 1.9 9.0 20 3 0.5 70 2.6 0.25 0.40 11 55 7/2.5 30 1.55 insoluble 0.4
Sillitin Z 89 86 86 1.9 9.0 20 3 0.5 75 2.6 0.21 0.40 10 55 7/2.5 30 1.55 insoluble 0.4
Sillikolloid P 87 82 76 1.5 6.0 20 3 0.5 65 2.6 0.25 0.35 12 55 7/2.5 25 1.55 insoluble 0.5
Brightness Y Brightness Z Particle size D50 D97 > 40 m > 200 m m m mg/kg mg/kg % S/cm g/cm3 g/cm3 g/cm3 m2/g g/100 g
DIN 53 163/measuring geometry d/8° Internal test procedure Internal test procedure DIN ISO 787 part 18 DIN ISO 787 part 18 DIN ISO 787 part 2 DIN ISO 787 part 14 DIN ISO 787 part 10 DIN ISO 903-1976 DIN ISO 787 part 11 DIN ISO 9277 DIN ISO 787 part 5 acc. to Mohs acc. to Einlehner sin /sin % DIN ISO 787 part 3 DIN 53 770 (0.1 n HCl)
Residue
Volatile Matter at 105 °C Electrical conductivity Density Bulk density Tamped density BET Surface area Oil absorption Hardness silica/kaolinite Abrasivity Refractive index n Water solubility Acid solubility Chemical analysis: SiO 2 Al 2O 3 Fe 2O 3 Mineralogical composition: Crypto-crystalline silica Amorphous silica Kaolinite Other minerals
mg
% % %
DIN 51001 (XFA) DIN 51001 (XFA) DIN 51001 (XFA)
87 8 <1
88 8 <1
82 12 < 1.5
84 10 <1
84 10 <1
82 12 <1
82 12 <1
80 14 <1
% % % %
based on X-ray diffraction pattern analysis combined with Rietveld
70 8 17 5
70 8 17 5
60 10 25 5
65 10 20 5
65 10 20 5
0 10 25 5
60 10 25 5
55 10 30 5
The values shown in the table are to be considered as guidelines only. Material specifications and technical data sheets for all products are part of our sales conditions and are available on our web site www.hoffmann-mineral.com
EINECS-No.: CAS-No.: CAS-No.: TSCA-No.:
310-127-6 1020665-14-8 (Siliceous Earth) 7631-86-9 (silica), 1318-74-7 (kaolinite) 7631-86-9 (silica), 1318-74-7 (kaolinite)
10
11
Product Characteristics of puriss Grades
· Created by a downstream process.
Characteristics Brightness Y Brightness Z Particle size Residue D50 D97 > 40 m > 200 m m m mg/kg mg/kg % S/cm g/cm3 g/cm3 g/cm3 Unit Sillitin N 85 Sillitin Z 86 Sillitin Z 89 Sillikolloid puriss puriss puriss P 87 puriss 82 75 3.0 16.0 8 1 0.4 70 2.6 0.30 0.47 82 75 1.9 9.0 8 1 0.4 75 2.6 0.23 0.37 55 7/2.5 30 1.55 insoluble 0.4 7 86 86 1.9 9.0 8 1 0.4 75 2.6 0.21 0.40 55 7/2.5 30 1.55 insoluble 0.4 7 82 76 1.5 6.0 8 1 0.5 75 2.6 0.21 0.35 55 7/2.5 25 1.55 insoluble 0.5 8
· The extremely low residue > 40 m is significantly reduced even more. · Significant reduction of abrasivity effect of this product series. Protection of user's processing equipment (e. g. mixers, tools, airless spray nozzles). · The puriss products are the first choice for all nonaqueous formulas thanks to the excellent dispersion behavior. They are recommended for solvent-free, resin-bonded systems like polyester, epoxy and polyurethane. Dispersion behavior in ester plasticizer
Volatile Matter at 105 °C Electrical conductivity Density Bulk density Tamped density Oil absorption Hardness silica/kaolinite Abrasivity Refractive index n Water solubility Acid solubility Dispersion time in ester plasticizer Chemical analysis: SiO 2 Al 2O 3 Fe 2O 3 Mineralogical composition: Crypto-crystalline silica Amorphous silica Kaolinite Other minerals
g/100 g 45 7/2.5 35 1.55 % min insoluble 0.5 3
mg
> 120
> 120
> 120
% % % % % % %
84 10 <1 65 10 20 5
82 12 <1 60 10 25 5
82 12 <1 60 10 25 5
80 14 <1 55 10 30 5
Stirred with blade mixer 1200 rpm, 20 % filler material, grain size (Hegman gauge) 20 mm
· puriss versions are ideal for thin layers. · Improved mechanical properties primarily for adhesives and sealants.
The values shown in the table are to be considered as guidelines only. Material specifications and technical data sheets for all products are part of our sales conditions and are available on our web site www.hoffmann-mineral.com
12
Dispersion time in min.
13
The
Standard Range the Surface-Treated
Neuburg Siliceous Earth
Product Aktisil VM 56 Aktisil VM 56/89
Basic material Sillitin Z 86 Sillitin Z 89
Surface modification Vinyl silane Vinyl silane
Typical applications Radical cured systems, (UP-resins, elastomers, UV-curing etc.) Radical cured systems, (UP-resins, elastomers, UV-curing etc.), but brighter Radical- and radiation cured systems (UV-curing, UP-resins) Like MAM, but for lower demand on color neutrality Reactive- and solid resins, industrial coatings, electro deposition paint, anti-corrosive coatings Reactive- and solid resins, powder coatings, thermo-plastics (in particular polyamide), OEM hydro primer surfacer, anti-corrosive coatings, MS adhesives Sulfur and metal oxide cured elastomers, PUR-resins, EP-resins Rheology control, anti-corrosive coatings, general hydrophobic coatings, MS sealants
Aktisil MAM Aktisil MAM-R Aktisil EM
Sillitin V 88 Sillitin V 85 Sillitin Z 86
Methacrylic silane Methacrylic silane Epoxy silane
Aktisil AM
Sillitin Z 86
Amino silane
Aktisil MM Aktisil PF 777(1)
Sillitin Z 86 Sillitin Z 86
Mercapto silane Alkyl silane
(1) hydrophobic product, non-reactive Specialties are available on demand. Technical Data Sheets and Material Specification Sheets for all above mentioned products are given on our web site www.hoffmann-mineral.com
14
15
Product Characteristics of
Characteristics Brightness Y Brightness Z Particle size D50 D97 > 40 m > 200 m
Unit
Method DIN 53 163/measuring geometry d/8°
Aktisil VM 56 81 76 2.2 10 20 3 0.8 2.6 0.32 7 45 Z 86
Aktisil VM 56/89 85 85 2.0 9 20 3 0.8 2.6 0.32 8 45 Z 89
Aktisil MAM 83 85 4 18 20 3 0.2 2.6 0.45 7 45 V 88
Aktisil MAM-R 80 76 4 18 20 3 0.2 2.6 0.45 7 45 V 85
Aktisil EM 82 77 2.2 10 20 3 0.5 2.6 0.32 8 45 Z 86
Aktisil AM 82 77 2.2 10 30 3 0.2 2.6 0.32 9 45 Z 86
Aktisil MM 81 76 2.2 10 30 3 0.7 2.6 0.32 7 45 Z 86
Aktisil PF 777 80 75 2.2 10 20 3 0.3 2.6 0.25 8 35 Z 86
m m mg/kg mg/kg % g/cm3 g/cm3 m2/g g/100 g
Internal test procedure Internal test procedure DIN ISO 787 part 18 DIN ISO 787 part 18 DIN ISO 787 part 2 DIN ISO 787 part 10 DIN ISO 903-1976 DIN ISO 9277 DIN ISO 787 part 5
Residue
Volatile Matter at 105 °C Density Bulk density Surface area Oil absorption Base material Sillitin
The values shown in the table are to be considered as guidelines only. Material specifications and technical data sheets for all products are part of our sales conditions and are available on our web site www.hoffmann-mineral.com
16
17
Grades for the Application in Paint and Var nishes and Similar Appliance
(Meth-) Acrylic Resins
Product Aktisil VM 56
Basis Sillitin Z 86
treated with Vinyl silane
Aktisil VM 56/89
Sillitin Z 89
Vinyl silane
Aktisil MAM
Sillitin V 88
Methacrylic silane
Aktisil MAM-R
Sillitin V 85
Methacrylic silane
Aktisil EM
Sillitin Z 86
Epoxy silane
Aktisil AM
Sillitin Z 86
Amino silane
Aktisil MM
Sillitin Z 86
Mercapto silane
Aktisil PF 777
Sillitin Z 86
Alkyl silane
Technical Data Sheets and Material Specification Sheets for all above mentioned products are given on our web sites www.hoffmann-mineral.com
18
Polyurethane Resins
19
Vinyl Acetate Resins
Vinyl Ester Resins
Melamine Resins
Polyester Resins
Silicone Resins
Phenol Resins
Epoxy Resins
Advantages in Paint and Varnish Systems
Filler properties loose structure small particle size Effect in paint and varnish systems quick and good incorporation excellent dispersibility (especially puriss products) very little tendency towards sedimentation no hard sediment favorable rheological properties matting effect rapid drying water vapor permeability good pigment dispersion (spacer effect) good edge covering good sanding excellent stone impact resistance good mechanical properties good corrosion protection low abrasivity
non-ground filler low grit content very low electrical conductivity (< 100 S)
no disturbing electrolytes good bath stability in electrophoretic applications good stability in water based varnish systems scratch resistance abrasion resistance weather and chemical resistance, especially acids very good transparency (for clear lacquer systems) good bond filler to polymer
no buffer effect mineralogical composition (hardness)
chemically inert similar refraction index as binder surface treatment possible
20
21
Typical Applications of Neuburg Siliceous Earth in
Coatings
Electro Deposition Paint Advantages: · small particle size · very low electrical conductivity · no disturbing electrolytes · very little tendency towards sedimentation · no hard sediment · excellent dispersibility · good bath stability · good corrosion protection · good throwing power · good flexibility (Erichsen cupping and impact test) Recommended products: · Sillitin Z 86 · Sillitin Z 89 · Sillikolloid P 87 · Aktisil PF 777
Primer-surfacer Advantages: · small particle size · low grit content · excellent dispersibility · good sanding/low visibility of sanding marks · good corrosion protection · improved appearance of base/top coat · excellent stone-chipping resistance (especially Aktisil AM) · gloss (especially Aktisil AM) Recommended products: · Sillitin Z 86 · Sillitin Z 89 · Sillikolloid P 87 · Sillikolloid P 87 puriss · Aktisil AM
22
23
Abrasivity According to Einlehner
quartz flour mica Sillitin Z 86 puriss 30 Sillikolloid P 87 25
54
360
Anti-corrosive Coating Advantages: · excellent dispersibility · favorable rheological properties · very little tendency towards sedimentation · low abrasivity · good weather resistance · good corrosion protection · good chemical resistance, especially against acids (Aktisil AM, Aktisil PF 777) · excellent abrasion resistance · rapid drying Recommended products: · all Sillitin grades and puriss, as well as Aktisil EM, Aktisil AM and Aktisil PF 777
Sillitin Z 86 30 Sillitin N 82
40
Abrasivity in mg
Powder Coatings Advantages: · excellent dispersibility · low abrasivity · good corrosion protection · scratch resistance · abrasion resistance · flexibility (Erichsen cupping and impact test) · good chemical resistance Recommended products: · all Sillitin grades and puriss, as well as Aktisil AM and Aktisil MM
24
25
UV-curing Coatings Advantages: · very little tendency towards sedimentation · no hard sediment · low abrasivity · good weather resistance · scratch resistance · abrasion resistance · very good transparency · matting effect · no effect on UV-curing Recommended products: · Sillitin V 85 · Sillitin V 88 · Sillitin Z 86 · Sillitin Z 86 puriss · Sillitin Z 89 · Sillitin Z 89 puriss · Aktisil VM 56 · Aktisil VM 56/89 · Aktisil MAM · Aktisil MAM-R
Further Applications Soft-feel paints (matting, soft-feel effects, good abrasion resistance, good chemical resistance) Gel coats (good pigment distribution [spacer effect], excellent dispersion behavior, balanced rheology, low sedimentation tendency, good flexibility, good weather resistance)
Solder resist (good edge covering, excellent dispersion behavior, very good transparency, no effect on UV-curing) Wood ventilation base (good breathability, fast drying)
26
27
Road marking paints (good rheology, abrasion resistance, night visibility, fast drying, good opacity/TiO2 extension) Facade- and dispersion paint (very little tendency towards sedimentation, good abrasion resistance, good breathability and water vapor permeability, matting effect, good pigment distribution [spacer effect])
Floor coatings (good rheology, good working properties, good chemical resistance, good mechanical characteristics, good abrasion resistance, anti-settlement additives for other fillers)
Sports surfaces (good rheology, good working properties, good mechanical characteristics [tear resistance], good abrasion resistance) Plastic primers (good rheology [low run off tendency], very low sedimentation tendency, low abrasivity, good adhesion) Artist's paints (excellent dispersion behavior, good pigment distribution [spacer effect], fast drying) 2C-PUR-applications from sealants, coatings, elastomers to tooling resins Sealants and elastic adhesives (high tension values, good rheology, good mechanical characteristics)
28
29
Packaging
Product Paper bag PE bag EVA bag Big Bag Type 1/Type 2/Type 3 750/850/1200 kg 750/850/1200 kg 750/850/1200 kg 750/850/1200 kg 750/850/1200 kg 600/750/1000 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg in bulk
Sillitin V 85 Sillitin V 88 Sillitin N 82 Sillitin N 85 Sillitin N 87 Sillitin Z 86 Sillitin Z 89 Sillikolloid P 87 Sillitin puriss Sillikolloid P 87 puriss Aktisil VM 56 Aktisil VM 56/89 Aktisil MAM Aktisil MAM-R Aktisil EM Aktisil AM Aktisil MM Aktisil PF 777
25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 20 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg
10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 20 kg 10 to 20 kg 10 to 25 kg 10 to 20 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg
10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 15 kg 10 to 15 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg
25 t 25 t 25 t 25 t 25 t 24 t 24 t 22 t 24 t
Special packaging and sizes are available on demand.
30
31
VM-7/09.2010/06104980 E
Publisher: HOFFMANN MINERAL GmbH Muenchener Strasse 75 · 86633 Neuburg (Donau) · Germany Phone +49 ( 0 ) 84 31-53-0 · Fax +49 ( 0 ) 84 31-53-3 30 info@hoffmann-mineral.com · www.hoffmann-mineral.com
Structure and Mineralogical Composition
The Genesis of Neuburg Siliceous Earth
Neuburg Siliceous Earth is a raw material with a history one that started 95 million years ago! At that time, large parts of South Germany were covered by the sea, and in a bay within what is now Bavaria, the various strata of Neuburg Siliceous Earth were deposited on limestone sediment dating from the later Jurassic period (fig. 1). After the sea receded, the limestone strata collapsed, forming so-called karst funnels into which the siliceous earth fell and was preserved (fig. 2). This is where a raw material was created which wherever you search for it on this earth is totally unique (fig. 3).
fig. 1
Classic Neuburg Siliceous Earth also called Sillitin and Sillikolloid is a natural combination of corpuscular, crypto-crystalline and amorphous silica and lamellar kaolinite: a loose structure impossible to separate by physical methods. As a result of natural formation, the silica portion exhibits a round grain shape and consists of aggregated crypto-crystalline primary particles of about 200 nm diameter which are covered by amorphous silica opal-like. Such a unique structure is responsible for a relatively high specific surface area and oil absorption, which result, besides rheological activity, also in a whole range of application advantages.
fig. 2
Stratum Stratum Stratum Stratum Stratum Stratum
1: 2: 3: 4: 5: 6:
Fine sand Siliceous Earth Coarse sand Clay Limestone Overburden
fig. 3
2
3
The Separation Process
9 1 8 7 2 3 4 5
10 11
12
6
Step 13:
Charging and crushing of raw earth, separation of coarse material by vibrator screens. Dissolving, separation of gravel fractions and dispersion in water.
Step 6:
Separation of sand fractions and classification into different grain sizes by hydrocyclones.
Step 45:
Step 710: Densification, storage and blending of individual product types in the form of slurry. Step 1112: Removal of water in filter presses; elimination of residual water in dryers.
4
5
Neuburg Siliceous Earth our Range at a Glance
The following table and diagram summarize the physical properties and the chemical composition of the Neuburg Siliceous Earth. The most important variations are particle size and color.
The Neuburg Siliceous Earth is available in four different grain fractions.
D(x) in % 100 90 80 70 60 50 40 30 20 10 x in m 0 50 20 10 1 0.5 0.2 0.1
4.0 3.0 1.9 1.5
18.0
16.0
9.0
6.0
97 %
50 %
Sillitin V
Sillitin N
Sillitin Z
Sillikolloid P
The determination of these particle size distributions was based on Fraunhofer diffraction spectra. The analyses were run on a laser instrument Master-sizer S from Malvern.
6
7
Neuburg Siliceous Earth our Range at a Glance
Furthermore the Neuburg Siliceous Earth is available in a range of color shades from yellow to off-white to white, according to particle size distribution.
V 88
Z 89
increasing color neutrality
N 87 Z 86 V 85 N 85
P 87
N 82
decreasing medium grain size
Sillitin V
Sillitin N
Sillitin Z
Sillikolloid P
8
9
Product Characteristics of
and
Characteristics
Unit
Method
Sillitin V 85 82 76 4.0 18.0 25 5 0.5 65 2.6 0.35 0.60 8 45 7/2.5 45 1.55 insoluble 0.4
Sillitin V 88 86 88 4.0 18.0 25 5 0.5 70 2.6 0.30 0,60 8 45 7/2.5 40 1.55 insoluble 0.4
Sillitin N 82 77 65 3.0 16.0 25 5 0.5 70 2.6 0.30 0.50 11 45 7/2.5 40 1.55 insoluble 0.5
Sillitin N 85 82 75 3.0 16.0 25 5 0.5 70 2.6 0.30 0.50 10 45 7/2.5 35 1.55 insoluble 0.5
Sillitin N 87 83 76 3.0 16.0 20 5 0.5 70 2.6 0.30 0.50 10 45 7/2.5 35 1.55 insoluble 0.5
Sillitin Z 86 82 75 1.9 9.0 20 3 0.5 70 2.6 0.25 0.40 11 55 7/2.5 30 1.55 insoluble 0.4
Sillitin Z 89 86 86 1.9 9.0 20 3 0.5 75 2.6 0.21 0.40 10 55 7/2.5 30 1.55 insoluble 0.4
Sillikolloid P 87 82 76 1.5 6.0 20 3 0.5 65 2.6 0.25 0.35 12 55 7/2.5 25 1.55 insoluble 0.5
Brightness Y Brightness Z Particle size D50 D97 > 40 m > 200 m m m mg/kg mg/kg % S/cm g/cm3 g/cm3 g/cm3 m2/g g/100 g
DIN 53 163/measuring geometry d/8° Internal test procedure Internal test procedure DIN ISO 787 part 18 DIN ISO 787 part 18 DIN ISO 787 part 2 DIN ISO 787 part 14 DIN ISO 787 part 10 DIN ISO 903-1976 DIN ISO 787 part 11 DIN ISO 9277 DIN ISO 787 part 5 acc. to Mohs acc. to Einlehner sin /sin % DIN ISO 787 part 3 DIN 53 770 (0.1 n HCl)
Residue
Volatile Matter at 105 °C Electrical conductivity Density Bulk density Tamped density BET Surface area Oil absorption Hardness silica/kaolinite Abrasivity Refractive index n Water solubility Acid solubility Chemical analysis: SiO 2 Al 2O 3 Fe 2O 3 Mineralogical composition: Crypto-crystalline silica Amorphous silica Kaolinite Other minerals
mg
% % %
DIN 51001 (XFA) DIN 51001 (XFA) DIN 51001 (XFA)
87 8 <1
88 8 <1
82 12 < 1.5
84 10 <1
84 10 <1
82 12 <1
82 12 <1
80 14 <1
% % % %
based on X-ray diffraction pattern analysis combined with Rietveld
70 8 17 5
70 8 17 5
60 10 25 5
65 10 20 5
65 10 20 5
0 10 25 5
60 10 25 5
55 10 30 5
The values shown in the table are to be considered as guidelines only. Material specifications and technical data sheets for all products are part of our sales conditions and are available on our web site www.hoffmann-mineral.com
EINECS-No.: CAS-No.: CAS-No.: TSCA-No.:
310-127-6 1020665-14-8 (Siliceous Earth) 7631-86-9 (silica), 1318-74-7 (kaolinite) 7631-86-9 (silica), 1318-74-7 (kaolinite)
10
11
Product Characteristics of puriss Grades
· Created by a downstream process.
Characteristics Brightness Y Brightness Z Particle size Residue D50 D97 > 40 m > 200 m m m mg/kg mg/kg % S/cm g/cm3 g/cm3 g/cm3 Unit Sillitin N 85 Sillitin Z 86 Sillitin Z 89 Sillikolloid puriss puriss puriss P 87 puriss 82 75 3.0 16.0 8 1 0.4 70 2.6 0.30 0.47 82 75 1.9 9.0 8 1 0.4 75 2.6 0.23 0.37 55 7/2.5 30 1.55 insoluble 0.4 7 86 86 1.9 9.0 8 1 0.4 75 2.6 0.21 0.40 55 7/2.5 30 1.55 insoluble 0.4 7 82 76 1.5 6.0 8 1 0.5 75 2.6 0.21 0.35 55 7/2.5 25 1.55 insoluble 0.5 8
· The extremely low residue > 40 m is significantly reduced even more. · Significant reduction of abrasivity effect of this product series. Protection of user's processing equipment (e. g. mixers, tools, airless spray nozzles). · The puriss products are the first choice for all nonaqueous formulas thanks to the excellent dispersion behavior. They are recommended for solvent-free, resin-bonded systems like polyester, epoxy and polyurethane. Dispersion behavior in ester plasticizer
Volatile Matter at 105 °C Electrical conductivity Density Bulk density Tamped density Oil absorption Hardness silica/kaolinite Abrasivity Refractive index n Water solubility Acid solubility Dispersion time in ester plasticizer Chemical analysis: SiO 2 Al 2O 3 Fe 2O 3 Mineralogical composition: Crypto-crystalline silica Amorphous silica Kaolinite Other minerals
g/100 g 45 7/2.5 35 1.55 % min insoluble 0.5 3
mg
> 120
> 120
> 120
% % % % % % %
84 10 <1 65 10 20 5
82 12 <1 60 10 25 5
82 12 <1 60 10 25 5
80 14 <1 55 10 30 5
Stirred with blade mixer 1200 rpm, 20 % filler material, grain size (Hegman gauge) 20 mm
· puriss versions are ideal for thin layers. · Improved mechanical properties primarily for adhesives and sealants.
The values shown in the table are to be considered as guidelines only. Material specifications and technical data sheets for all products are part of our sales conditions and are available on our web site www.hoffmann-mineral.com
12
Dispersion time in min.
13
The
Standard Range the Surface-Treated
Neuburg Siliceous Earth
Product Aktisil VM 56 Aktisil VM 56/89
Basic material Sillitin Z 86 Sillitin Z 89
Surface modification Vinyl silane Vinyl silane
Typical applications Radical cured systems, (UP-resins, elastomers, UV-curing etc.) Radical cured systems, (UP-resins, elastomers, UV-curing etc.), but brighter Radical- and radiation cured systems (UV-curing, UP-resins) Like MAM, but for lower demand on color neutrality Reactive- and solid resins, industrial coatings, electro deposition paint, anti-corrosive coatings Reactive- and solid resins, powder coatings, thermo-plastics (in particular polyamide), OEM hydro primer surfacer, anti-corrosive coatings, MS adhesives Sulfur and metal oxide cured elastomers, PUR-resins, EP-resins Rheology control, anti-corrosive coatings, general hydrophobic coatings, MS sealants
Aktisil MAM Aktisil MAM-R Aktisil EM
Sillitin V 88 Sillitin V 85 Sillitin Z 86
Methacrylic silane Methacrylic silane Epoxy silane
Aktisil AM
Sillitin Z 86
Amino silane
Aktisil MM Aktisil PF 777(1)
Sillitin Z 86 Sillitin Z 86
Mercapto silane Alkyl silane
(1) hydrophobic product, non-reactive Specialties are available on demand. Technical Data Sheets and Material Specification Sheets for all above mentioned products are given on our web site www.hoffmann-mineral.com
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Product Characteristics of
Characteristics Brightness Y Brightness Z Particle size D50 D97 > 40 m > 200 m
Unit
Method DIN 53 163/measuring geometry d/8°
Aktisil VM 56 81 76 2.2 10 20 3 0.8 2.6 0.32 7 45 Z 86
Aktisil VM 56/89 85 85 2.0 9 20 3 0.8 2.6 0.32 8 45 Z 89
Aktisil MAM 83 85 4 18 20 3 0.2 2.6 0.45 7 45 V 88
Aktisil MAM-R 80 76 4 18 20 3 0.2 2.6 0.45 7 45 V 85
Aktisil EM 82 77 2.2 10 20 3 0.5 2.6 0.32 8 45 Z 86
Aktisil AM 82 77 2.2 10 30 3 0.2 2.6 0.32 9 45 Z 86
Aktisil MM 81 76 2.2 10 30 3 0.7 2.6 0.32 7 45 Z 86
Aktisil PF 777 80 75 2.2 10 20 3 0.3 2.6 0.25 8 35 Z 86
m m mg/kg mg/kg % g/cm3 g/cm3 m2/g g/100 g
Internal test procedure Internal test procedure DIN ISO 787 part 18 DIN ISO 787 part 18 DIN ISO 787 part 2 DIN ISO 787 part 10 DIN ISO 903-1976 DIN ISO 9277 DIN ISO 787 part 5
Residue
Volatile Matter at 105 °C Density Bulk density Surface area Oil absorption Base material Sillitin
The values shown in the table are to be considered as guidelines only. Material specifications and technical data sheets for all products are part of our sales conditions and are available on our web site www.hoffmann-mineral.com
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Grades for the Application in Paint and Var nishes and Similar Appliance
(Meth-) Acrylic Resins
Product Aktisil VM 56
Basis Sillitin Z 86
treated with Vinyl silane
Aktisil VM 56/89
Sillitin Z 89
Vinyl silane
Aktisil MAM
Sillitin V 88
Methacrylic silane
Aktisil MAM-R
Sillitin V 85
Methacrylic silane
Aktisil EM
Sillitin Z 86
Epoxy silane
Aktisil AM
Sillitin Z 86
Amino silane
Aktisil MM
Sillitin Z 86
Mercapto silane
Aktisil PF 777
Sillitin Z 86
Alkyl silane
Technical Data Sheets and Material Specification Sheets for all above mentioned products are given on our web sites www.hoffmann-mineral.com
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Polyurethane Resins
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Vinyl Acetate Resins
Vinyl Ester Resins
Melamine Resins
Polyester Resins
Silicone Resins
Phenol Resins
Epoxy Resins
Advantages in Paint and Varnish Systems
Filler properties loose structure small particle size Effect in paint and varnish systems quick and good incorporation excellent dispersibility (especially puriss products) very little tendency towards sedimentation no hard sediment favorable rheological properties matting effect rapid drying water vapor permeability good pigment dispersion (spacer effect) good edge covering good sanding excellent stone impact resistance good mechanical properties good corrosion protection low abrasivity
non-ground filler low grit content very low electrical conductivity (< 100 S)
no disturbing electrolytes good bath stability in electrophoretic applications good stability in water based varnish systems scratch resistance abrasion resistance weather and chemical resistance, especially acids very good transparency (for clear lacquer systems) good bond filler to polymer
no buffer effect mineralogical composition (hardness)
chemically inert similar refraction index as binder surface treatment possible
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Typical Applications of Neuburg Siliceous Earth in
Coatings
Electro Deposition Paint Advantages: · small particle size · very low electrical conductivity · no disturbing electrolytes · very little tendency towards sedimentation · no hard sediment · excellent dispersibility · good bath stability · good corrosion protection · good throwing power · good flexibility (Erichsen cupping and impact test) Recommended products: · Sillitin Z 86 · Sillitin Z 89 · Sillikolloid P 87 · Aktisil PF 777
Primer-surfacer Advantages: · small particle size · low grit content · excellent dispersibility · good sanding/low visibility of sanding marks · good corrosion protection · improved appearance of base/top coat · excellent stone-chipping resistance (especially Aktisil AM) · gloss (especially Aktisil AM) Recommended products: · Sillitin Z 86 · Sillitin Z 89 · Sillikolloid P 87 · Sillikolloid P 87 puriss · Aktisil AM
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Abrasivity According to Einlehner
quartz flour mica Sillitin Z 86 puriss 30 Sillikolloid P 87 25
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360
Anti-corrosive Coating Advantages: · excellent dispersibility · favorable rheological properties · very little tendency towards sedimentation · low abrasivity · good weather resistance · good corrosion protection · good chemical resistance, especially against acids (Aktisil AM, Aktisil PF 777) · excellent abrasion resistance · rapid drying Recommended products: · all Sillitin grades and puriss, as well as Aktisil EM, Aktisil AM and Aktisil PF 777
Sillitin Z 86 30 Sillitin N 82
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Abrasivity in mg
Powder Coatings Advantages: · excellent dispersibility · low abrasivity · good corrosion protection · scratch resistance · abrasion resistance · flexibility (Erichsen cupping and impact test) · good chemical resistance Recommended products: · all Sillitin grades and puriss, as well as Aktisil AM and Aktisil MM
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UV-curing Coatings Advantages: · very little tendency towards sedimentation · no hard sediment · low abrasivity · good weather resistance · scratch resistance · abrasion resistance · very good transparency · matting effect · no effect on UV-curing Recommended products: · Sillitin V 85 · Sillitin V 88 · Sillitin Z 86 · Sillitin Z 86 puriss · Sillitin Z 89 · Sillitin Z 89 puriss · Aktisil VM 56 · Aktisil VM 56/89 · Aktisil MAM · Aktisil MAM-R
Further Applications Soft-feel paints (matting, soft-feel effects, good abrasion resistance, good chemical resistance) Gel coats (good pigment distribution [spacer effect], excellent dispersion behavior, balanced rheology, low sedimentation tendency, good flexibility, good weather resistance)
Solder resist (good edge covering, excellent dispersion behavior, very good transparency, no effect on UV-curing) Wood ventilation base (good breathability, fast drying)
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Road marking paints (good rheology, abrasion resistance, night visibility, fast drying, good opacity/TiO2 extension) Facade- and dispersion paint (very little tendency towards sedimentation, good abrasion resistance, good breathability and water vapor permeability, matting effect, good pigment distribution [spacer effect])
Floor coatings (good rheology, good working properties, good chemical resistance, good mechanical characteristics, good abrasion resistance, anti-settlement additives for other fillers)
Sports surfaces (good rheology, good working properties, good mechanical characteristics [tear resistance], good abrasion resistance) Plastic primers (good rheology [low run off tendency], very low sedimentation tendency, low abrasivity, good adhesion) Artist's paints (excellent dispersion behavior, good pigment distribution [spacer effect], fast drying) 2C-PUR-applications from sealants, coatings, elastomers to tooling resins Sealants and elastic adhesives (high tension values, good rheology, good mechanical characteristics)
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Packaging
Product Paper bag PE bag EVA bag Big Bag Type 1/Type 2/Type 3 750/850/1200 kg 750/850/1200 kg 750/850/1200 kg 750/850/1200 kg 750/850/1200 kg 600/750/1000 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg 550/700/900 kg in bulk
Sillitin V 85 Sillitin V 88 Sillitin N 82 Sillitin N 85 Sillitin N 87 Sillitin Z 86 Sillitin Z 89 Sillikolloid P 87 Sillitin puriss Sillikolloid P 87 puriss Aktisil VM 56 Aktisil VM 56/89 Aktisil MAM Aktisil MAM-R Aktisil EM Aktisil AM Aktisil MM Aktisil PF 777
25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 20 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg
10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 20 kg 10 to 20 kg 10 to 25 kg 10 to 20 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg 10 to 25 kg
10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 15 kg 10 to 15 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg 10 to 20 kg
25 t 25 t 25 t 25 t 25 t 24 t 24 t 22 t 24 t
Special packaging and sizes are available on demand.
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