Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BASF ASP 400 Hydrous Kaolin

BASF ASP 400 Hydrous Kaolin is a high-purity, surface-modified hydrous kaolin clay from BASF’s ASP series, engineered for enhanced rheology control, opacity, and suspension stability in water-based coatings, inks, and adhesives—delivering consistent performance and improved formulation efficiency.
  • basf asp 400 hydrous kaolin_1c999c9b
  • basf asp 400 hydrous kaolin_1c999c9b

Features Of BASF ASP 400 Hydrous Kaolin

  1. Highly dispersible hydrous kaolin with optimized particle size distribution for improved suspension stability.

  2. Low abrasivity and gentle on processing equipment, supporting extended mill and pump life.

  3. Neutral pH and low soluble salt content ensure compatibility with sensitive resin systems and pigments.

  4. Consistent batch-to-batch quality backed by BASF’s global quality control and traceability standards.

  5. Enhanced opacity and matte finish contribution in water-based architectural and industrial coatings.

Typical Applications Of BASF ASP 400 Hydrous Kaolin

  1. Water-based architectural paints and interior emulsion coatings.

  2. Industrial maintenance coatings requiring balanced rheology and hiding power.

  3. Printing inks—especially flexographic and gravure formulations where shear stability is critical.

  4. Adhesives and sealants requiring inert, non-reactive filler with controlled viscosity build.

  5. Plastics masterbatches for functional filler applications in polyolefin and PVC compounds.

Specifications Of BASF ASP 400 Hydrous Kaolin

Chemical TypeHydrous aluminum silicate (Kaolinite)
Product FormFree-flowing dry powder
AppearanceWhite to off-white fine powder
Moisture Content (105 °C, 2 h)8.0 – 10.5 wt%
pH (10% slurry in water)6.5 – 7.5
Loss on Ignition (LOI, 1000 °C)12.0 – 14.0 wt%
Residue on 45 µm Sieve≤ 0.1 wt%
Specific Surface Area (BET)18 – 22 m²/g


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