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Portafill® A25/10
- CASE Ingredients Features
- Chemical ResistanceExcellent WhitenessGood BrightnessImproved Water SpottingLess Dirt Pick Up PotentialMatting
- Chemical Name
- Alumina Trihydrate (ATH)
- Chemical Family
- Aluminum Compounds
Portafill® A25/10 is produced from carefully selected synthetic aluminum hydroxide (ATH). The chemical composition of the raw material and the finished product is closely monitored, and the particle size is kept within a narrow variation. Portafill® A25/10 micronized functional filler is used in thermosetting powder coatings as an alternative to barium sulfate, when the high density is a limitation. In addition, Portafill® A25/10 filler is less prone to the phenomena known as "water spotting" in comparison to barium sulfate.
Identification
- CASE Ingredients Functions
- Filler
Product families
Applications
Paints & Coatings — Building & Construction
- Architectural Coatings
Building & Construction — Building Envelope & Roofing
- Architectural Coatings
Product Families
CASE Ingredients — Additives
- Fillers & Extenders
Other characteristics
- Brand
- Dar-Tech Portafill
- End Uses
- Powder Coating
- Functions
- Filler
- Particle Size
- 13.0 microns
- Oil Absorption
- 18.0 g/100 g
- Markets
- Building & Construction
- Paints & Coatings
- Technology
- CASE Ingredients
- Packaging Type
- Bags
- Bulk
- Labeling Claims
- High Purity
- Country Availability
- Canada
- USA
- Coating End Applications
- Powder Coating
Technical data
Table 1 of 3
11 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Oil Absorption | 18.0 | g/100g | ISO 787/5 |
| Color (D65;10º, L*) | 98.5 | — | CIELAB DIN 6174 |
| Color (D65;10º, a*) | -0.2 | — | CIELAB DIN 6174 |
| Color (D65;10º, b*) | 0.4 | — | CIELAB DIN 6174 |
| Moisture Content | 0.2 | % | ISO 787/2 |
| pH | 8.0 | — | ISO 787/9 |
| Density | 2.4 | g/cm³ | — |
| Bulk Density | 1.0 | g/cm³ | — |
| Hardness | 3.0 | — | Mohs’ scale |
| Refractive Index | 1.57 | — | — |
| Thermal Stability | approx. 200 | °C | DSC |
Table 2 of 3
3 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Percentage Passing on Individual Sieve (45 μm) | 0.25 | % | Alpine air jet |
| Particle Size (D50) | 13.0 | μm | Laser diffraction |
| Particle Size (D97) | 33.0 | μm | Laser diffraction |
Table 3 of 3
4 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Aluminum Oxide (Al₂O₃) | 65.0 | wt% | XRF |
| Sodium Oxide (Na₂O) | 0.2 | wt% | XRF |
| Ferric Oxide (Fe₂O₃) | 0.01 | wt% | XRF |
| Loss on Ignition (1050°C, 1 hour) | 34.5 | wt% | XRF |
