Organoclay for Anti-Corrosion Coatings | Rheological Agent
Organoclay for Anti-Corrosion Coatings: Using our organobentonite CP-34 in anti-corrosion coatings enhances their anti-sagging properties and provides particularly outstanding anti-settling performance. Even during long-term storage, the coating remains resistant to delamination
Anti-settling organic bentonite CP-34 is mainly used in solvent-based anti-corrosion paints to significantly improve the thixotropy, rheological properties, suspension, and anti-sagging properties of the paint formulation, and to enhance gel strength.
- Composition: Organic derivative of montmorillonite clay
- Appearance: Fine light yellow powder
- Moisture content (105℃, 2hr): ≤3.5%
- Loss on ignition (1000℃): 28%–30%
- Bulk density: 0.53 g/cm³
- Fineness (<74μm): ≥98%
Organoclay for Anti-Corrosion Coatings | CP-34 for Solvent Based Anti-Corrosion Paints
Organoclay for Anti-Corrosion Coatings | Anti-Settling Rheological Additive
Q: What function does Organoclay CP-34 play in anti-corrosion paint? A: CP-34 works as a rheological additive. It stops heavy anti-corrosion pigments from hard sedimentation and avoids sagging during thick coating application. It also reinforces the final coating film.
Q: Can CP-34 be used in water-based anti-corrosion paint? A: No. CP-34 is developed exclusively for solvent-based systems.
Q: What polar activator is recommended for CP-34? A: 95% ethanol or 95% methanol is recommended as polar activator for pre-gel preparation.
Q: What type of coatings is CP-34 suitable for? A: It fits solvent-based anti-corrosion paint, marine paint, alkyd paint, bituminous coating, polyester paint and other industrial coating systems.
Organoclay CP-34 disperses under high shear conditions. A polar activator is required to achieve optimal rheological performance. Heating is not required to get good dispersion. Recommended dosage: 0.2% ~ 2.0% based on total formula weight. Recommended polar activator: 95% Ethanol or 95% Methanol
- General solvent system: polar activator dosage at 40%~50% of CP-34 weight
- Xylene solvent system: polar activator dosage at 30%~40% of CP-34 weight
Pre-gel Preparation Procedure
- Charge solvent into the grinding mill
- Slowly add CP-34 (6–10% of total pregel weight) under continuous agitation
- High-speed mixing for 5 minutes
- Add polar activator
- High-speed mixing for another 5 minutes
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