Portafill® H 5
- CASE Ingredients Features
- Good Brightness
- Chemical Name
- Huntite
Portafill® H 5 is produced from a carefully selected, naturally occurring, platy, sedimentary mineral consisting predominantly of partially hydrated magnesium-calcium carbonate. The standardized quality of Portafill® H 5 is guaranteed by means of an ISO 9001-certified quality management plan. The chemical composition of raw material and product is closely monitored, and particle size is kept within a narrow variation. Particle shape, fineness, and high brightness make Portafill® H 5 a very efficient extender for TiO2 in paint, paper, and board applications. Its platy particle shape and very fine particle size make Portafill® H 5 an effective rheology modifier in aqueous suspensions and other fluids. It is therefore valued for applications in a/o adhesives, sealants, and plastisols.
Properties
- Physical Form
- Powder
Identification
Product families
Applications
- Coated Paper & Paperboard
Product Families
- Fillers & Extenders
- Rheology Modifiers & Stabilizers
- Finishing Additives & Treatments
Other characteristics
- Brand
- Dar-Tech Portafill
- Functions
- Extender, Rheology Modifier
- Particle Size
- 0.56 microns, 3.0 microns
- Markets
- Industrial
- Technology
- CASE Ingredients
- Industrial Additives & Materials
- Chemical Inventories
- DSL (Canada)
- TSCA (USA)
- Country Availability
- Canada
- USA
- Certifications and Compliance
Clean Water Act (CWA) Certified; Comprehensive Environmental Response Compensations & Liability Act (CERCLA); ISO 9001
- Industrial Additives End Use
- Paperboard
- Adhesives And Sealants
- Plastisol Adhesive
- Plastisol Sealant
Technical data
Table 1 of 3
11 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Surface Area | 18.0 | m²/g | BET |
| Oil Absorption | 57.0 | g/100g | ISO 787/5 |
| Brightness (L*) | 98.0 | — | ISO 2470 |
| Color (a) | 0.04 | — | ISO 2470 |
| Color (b) | 1.0 | — | ISO 2470 |
| Moisture Content | 0.6 | % | ISO 787/2 |
| pH | 10.0 | — | ISO 787/9 |
| Density | 2.7 | g/cm³ | — |
| Loose Apparent Density | 0.3 | g/cm³ | AP method |
| Hardness | 2 - 3 | — | Mohs’ scale |
| Refractive Index | 1.61 – 1.64 | — | — |
Table 2 of 3
6 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Percentage Passing on Individual Sieve (45 μm) | 0.01 | % | Alpine sieve Sedigraph |
| Particle Size (D10) | 0.41 | μm | Sedigraph D 5000 |
| Particle Size (D50) | 0.56 | μm | Sedigraph D 5000 |
| Particle Size (D50) | 3.0 | μm | Laser diffraction |
| Particle Size (D90) | 0.76 | μm | Sedigraph D 5000 |
| Particle Size (D97) | 0.9 | μm | Sedigraph D 5000 |
Table 3 of 3
6 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Magnesium Oxide (MgO) | 33.6 | wt% | XRF |
| Calcium Oxide (CaO) | 15.0 | wt% | XRF |
| Silicon Dioxide | 0.7 | wt% | XRF |
| Ferric Oxide (Fe₂O₃) | 0.03 | wt% | XRF |
| Fatty acid | 0.0 | wt% | Titrimetric |
| Loss on Ignition (1000°C, 1 hour) | 50.0 | wt% | XRF |
