Organoclay Rheological Additive BT-188

Organoclay Rheological Additive BT-188 is a light-yellow, free-flowing powder specifically engineered for solvent-based systems dominated by 200# solvent naphtha, coal tar, or aromatics. It delivers superior thixotropic efficiency and anti-sag performance, effectively preventing pigment settling in heavy-duty applications such as anti-corrosion coatings, container paints, and sealants. Requires the use of a polar activator to ensure optimal dispersion and structural stability in industrial formulations.

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Specifications

Appearance: Light yellow free-flowing powder
Volatile content (105°C, 2h): ≤3.5%
Particle size (<76μm / 200 mesh): ≥95%
Viscosity (7% xylene gel, 25°C): ≥3.5 Pa·s
Viscosity (5% 200# solvent, 25°C): ≥1500 mPa·s
Ignition loss (850-900°C): ≤40%

Features & Applications
Strong thickening, wide compatibility, requires polar activator.
Performs similarly to BT-184 but excels in No. 200 solvent naphtha, coal tar, and aromatic systems.
Used in paints, inks, sealants, greases, asphalt coatings, chlorinated rubber/ epoxy/ anti-corrosion/ container coatings, etc.

Packaging & Storage:

Packaged in double-layer bags with an outer kraft paper bag and an inner polyethylene film bag, or in valve paper bags. The weight is typically 25±0.25kg or as per customer requirements. When stored under dry conditions at temperatures between 0°C and 30°C, the shelf life is 24 months.

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