XYSIL® 300 is a hydrophilic fumed silica with a specific surface area of 300m2/g, and it is synthetic, hydrophilic, amorphous silica, produced via flame hydrolysis..
Characteristic:
- High specific surface area
- High purity
- Aggregated structure
- Submicron particle size
- Low bulk density
- Hydrophilic surface chemistry
Application:
- HTV silicone rubber, liquid silicone rubber
- Paints and coatings, ink, pigment
- Unsaturated polyester resins
- Adhesive & sealant
Functions:
- Rheology and thixotropy control
- Used as anti-settling, thickening, anti-sagging agent
- Free flow and suspension
- Reinforcement in HTV silicone rubber, liquid silicone rubber
- Excellent transparency
Packing and Storage:
- Packaged in multiple layer kraft paper
- 10kg bags on pallet
- Should be stored in the original packaging in dry
- Protected from volatile substance
Physico-chemical Data
| Properties | Typical Value | Standardization |
|---|---|---|
| BET surface area [m2/g] | 380 ± 25 | GB/T10722 |
| Loss on drying [%] | < 2.0 | GB/T1717 |
| pH value | 3.8 – 4.5 | GB/T5211.3 |
| SiO2 content | ≥99.8 | GB/T20020 |
| Tamped density [g/L] | 25 ~ 60 | GB/T5211.14 |
| Loss on ignition | ≤ 2.5 | GB/T20020 |
| Sieve residue (45µm)(%) | <0.05 | GB/T5211.4 |
| Carbon content [wt%] | <0.2 | GB/T20020 |