Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
Applications & Uses
- Markets
- Compatible Polymers & Resins
- Applications
- Adhesives
- Industrial Coatings
- Application Details
HDK® H20RH is applied as a highly effective thickening and thixotropic agent of high compatibility in coatings, printing inks, adhesives and others, especially in epoxy, polyurethane and acrylate systems. It is not suitable for pharmaceuticals, food and feed. A good dispersion of HDK® H20RH is a must to assure optimum performance.
Properties
- Appearance
- White colloidal powder
- Typical Properties
- Specifications
- Properties
White colloidal powder of high purity.
| Value | Units | Test Method / Conditions | |
| Density (at 20°C, SiO₂) | approx. 2.2 | g/cm³ | DIN 51757 |
| Silanol Group Density | max. 0.5 | SiOH/nm² | — |
| SiO₂ Content (based on the substance heated at 1000°C for 2 hours) | min. 99.8 | % | DIN EN ISO 3262-19 |
| Value | Units | Test Method / Conditions | |
| BET Surface (area of hydrophilic silica) | 170 - 230 | m²/g | DIN ISO 9277 DIN 66132 |
| Carbon Content | 7.5 - 11.5 | % | DIN ISO 10694 |
| Loss on Drying (at 105°C, 2 hours) | max. 1.0 | % | DIN EN ISO 787-2 |
| pH (in 4% dispersion, 1:1 mixture of water-methanol) | 4.0 - 7.0 | — | DIN EN ISO 787-9 |
| Sieve Residue (min. 40 µm) | max. 0.5 | % | DIN EN ISO 787-18, Mocker Apparatus |
| Surface Modification | n-alkyl-siloxy groups | — | — |
| Tamped Density | 20 - 120 | g/l | DIN EN ISO 787-11 |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Notes
During transportation and processing HDK® H20RH may cause electrostatic charges. Like other amorphous silicas HDK® H20RH does not show either carcinogenic (IARC classification, Volume 68, 1997) or mutagenic properties.
Packaging & Availability
- Country Availability
- Packaging Type
- Regional Availability
- Packaging Information
Pallet with paper bags: 5 kg bags.
Storage & Handling
- Storage Information
HDK® H20RH should be stored in the original packaging in dry storage areas.