Fumed Silica
$20.00
Out of stock
SKU
510-18FSIL01
An extremely voluminous powder, hydrophilic silica thickens and increases transparency in waterborne and oil painting mediums. Learn more.
Fumed silica (also called pyrogenic silica) is a hydrophilic silica with a specific surface of 200 square meters per gram. Fumed silica has a chain-like particle structure that bonds to trap liquid, increasing viscosity. Add to thicken and increase the transparency of paint. Stirring or brushing paint containing fumed silica will cause it to flow, but it will thicken again when stopped. This property is called ‘‘thixotropy. “
| Specifications | |
| Physical Properties | |
| Average Primary Particle Size: | 12 nm |
| Specific Surface Area (BET): | 200 m2/g |
| Bulk Density, Loose: | 30 g/L |
| Bulk Density, Packed: | 50 g/L |
| Oil Absorption (Gardner-Coleman): | 138 g oil per 100 g pigment |
| pH Value (4% solution): | 3.7–4.7 |
| Color: | White |
| Refractive Index: | 1.48–1.50 |
| Moisture Content (maximum) (ASTM C 323-56 or C 234-82): | 1.5% |
| Loss on Ignition (ASTM C 323-56): | 1.0% |
| Chemical Analysis | |
| Silicon Dioxide (SiO2): | 99.8% |
| SKU | 510-18FSIL01 |
|---|---|
| Brand | Rublev Colours |
| Vendor | Rublev Colours |
| Processing Time | Usually ships the next business day. |
