Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- CASE Ingredients Functions
- Composite Materials Functions
- Plastics & Elastomers Functions
Features & Benefits
- CASE Ingredients Features
- Materials Features
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Composites End Use
- Industrial Additives End Use
- Ink & Toner Type
- Plastics & Elastomers End Uses
- Applications
- Adhesives
- Composites
- Flexographic Printing
- Gravure Printing
- Industrial Coatings
- Industrial Wood Coatings
- Inkjet Paper
- Offset Printing
- Printing Inks
- Pulp, Paper & Printing Processes
- Rheology Control
- Screen Printing
- Application Details
- HDK® T40 is applied as a thickening and thixotropic agent in many organic systems, e.g. in unsaturated polyesters, coatings, printing inks, adhesives and others, if high gloss and transparency is required.
- HDK® T40 is used as a reinforcing filler in elastomers, mainly silicone-elastomers. HDK® T40 is used as a free flow additive in the production of powder substances.
- HDK® T40 is not suitable for pharmaceuticals, food and feed. A good dispersion of HDK® T40 is a must to assure optimum performance.
Properties
- Color
- 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 |
| Loss of Weight (at 1000°C, 2hours (based on the substance dried at 105 °C for 2 hours)) | max. 2 | % | DIN EN ISO 3262-19 |
| Refraction Index | 1.46 | — | — |
| Silanol Group Density | 2 | 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 | 360 - 440 | m²/g | DIN ISO 9277 DIN 66132 |
| Loss on Drying (at 105°C, 2 hours) | max. 1.5 | % | DIN EN ISO 787-2 |
| pH (in 4% aqueous dispersion) | 3.8 - 4.3 | — | DIN EN ISO 787-9 |
| Sieve Residue (min. 40 µm) | max. 0.03 | % | DIN EN ISO 787-18, Mocker Apparatus |
| Tamped Density | approx. 40 | g/l | DIN EN ISO 787-11 |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Notes
During transportation and processing HDK® T40 may cause electrostatic charges. Like other amorphous silicas HDK® T40 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: 10 kg bags.
Storage & Handling
- Storage Information
HDK® T40 should be stored in the original packaging in dry storage areas. Due to the high surface area HDK® adsorbs volatiles and should be protected from humidity and volatiles. If single bags are taken away from an original pallet, the remaining bags of this pallet must again be protected against humidity and volatiles.