LUDOX® AS-40 by Grace is a low-density, colloidal silica. Used as a filler in coating applications.
- It is an aqueous colloidal dispersion containing 40% synthetic amorphous silica of nominal 22-nanometer particle size.
- It has a negative surface charge and is stabilized with ammonium hydroxide.
- It has a low sodium level, an overall negative particle charge, good binding strength, and stability in most applications.
- LUDOX® AS-40 has a shelf life of 24 months.
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Compliance
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LUDOX® AS-40 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Boiling Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Melting Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Particle Size | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Silicon Dioxide Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Sodium Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Sulfate Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Surface Area | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Transmittance, Visible | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Vapor Pressure | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Vapor Pressure | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| pH | 0.0 Visible After Login | Visible After Login | Visible After Login |