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

American Colloid Company VOLCLAY GPG 30 Sodium bentonite thickener

American Colloid Company VOLCLAY GPG 30 is a high-purity sodium bentonite thickener engineered for superior rheology control in water-based systems. It delivers rapid hydration, exceptional suspension stability, and consistent viscosity performance in drilling fluids, foundry sands, and environmental applications. This premium-grade mineral additive ensures reliable gel strength and thixotropic behavior without excessive yield stress.
  • american colloid company volclay gpg 30 sodium bentonite thickener_5a96e3b1
  • american colloid company volclay gpg 30 sodium bentonite thickener_5a96e3b1

Features Of American Colloid Company VOLCLAY GPG 30 Sodium bentonite thickener

  1. High-yield sodium bentonite with exceptional colloidal dispersion and suspension stability in aqueous systems.

  2. Consistent rheological performance across variable pH (6–10) and low-to-moderate electrolyte concentrations.

  3. Optimized particle size distribution for rapid hydration and efficient viscosity development without excessive gel time.

  4. Low soluble salt content, minimizing interference in sensitive formulations such as water-based coatings and drilling fluids.

  5. Batch-to-batch reproducibility certified per American Colloid’s ISO 9001 quality management system.

Typical Applications Of American Colloid Company VOLCLAY GPG 30 Sodium bentonite thickener

  1. Water-based architectural and industrial coatings for sag resistance and anti-settling performance.

  2. Non-aqueous and water-miscible metalworking fluids requiring emulsion stabilization and boundary lubricity enhancement.

  3. Oilfield drilling fluid additives for viscosity control, fluid loss reduction, and borehole wall stabilization.

  4. Foundry mold washes and refractory binders where green strength and thermal stability are critical.

  5. Adhesives and sealants requiring thixotropic structure to prevent slump during vertical application.

Specifications Of American Colloid Company VOLCLAY GPG 30 Sodium bentonite thickener

Chemical TypeSodium bentonite (montmorillonite-rich clay)
Product FormFree-flowing granular powder
AppearanceLight gray to tan granules, odorless
Primary ApplicationsRheology modifier, suspending agent, thixotropic thickener
Key FeaturesHigh swelling capacity, rapid dispersion, low dust generation
BenefitsImproved storage stability, reduced formulation complexity, enhanced shear-thinning behavior
pH of 2% Aqueous Slurry8.0 – 9.5
Moisture Content (max)10.0 wt%


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