Rheological additive
Rheological additive is an organo clay (modified benonite), designed for use in solvent based system including intermediate and low polarity polarity range organic liquild.
Advantages | Rheological additive
- Exerts gelling efficiency over a wide range of intermediate and low polarity.
- High thixotropy.
- Produce reproducible thixotropic consistency over a wide temperature range
- Imparts particle suspension, sag resistance without impairing flow and leveling, preventing hard settling of pigment and fillers.
Typical properties | Rheological additive
| Composition | Organic derivative of a montmorillonite clay |
| Appearance | Fine white powder |
| Moisture content(105℃,2hr) | ≤3.5% |
| Loss on ignition, %(1000℃) | <29% |
| Bulk density | 0.54g/cm3 |
| Fineness (200 mesh) | ≥98% |
Application
- Paints with low to medium polarity solvents.
- Drilling fuilds, in diesel based mud.
- Grease,
Using
CP-24B disperses under high shear and requires a polar activator (30%~40%) for best efficiency. Heat is not required to obtain good dispersion. Addition levels are typically in 0.2%~2.0%. Polar activator (95% Ethanol or 95% Methanol) is needed. Normally addition level of polar activator is recommended to be 30%~40% of CP-24B in weight. Pre-gel procedure is as below.
- Charge solvent to mill
- Slowly add CP-24B (8-10% by weight of total pregel) to mill under agitation.
- Mix at high speed for 5 minutes.
- Add polar activator.
- Mix at high speed for 5 minutes.
Note: The suggested addition level of our organoclay and polar activator is based on our lab testing. Exact dosage for detail formulation should be based on user’s testing.