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

BASF Attagel 50 Thixotropic Thickener

BASF Attagel 50 is a high-performance thixotropic thickener from BASF’s Attagel series, specifically engineered for water-based coatings and adhesives. It delivers exceptional rheology control, anti-sagging, and storage stability via natural magnesium aluminum silicate clay. Compatible with diverse formulations, it enables easy dispersion and efficient viscosity build without compromising flow or leveling.
  • basf attagel 50 thixotropic thickener_640f91c4
  • basf attagel 50 thixotropic thickener_640f91c4

Features Of BASF Attagel 50 Thixotropic Thickener

  1. Highly efficient natural bentonite-based thixotropic agent for waterborne and solventborne systems.

  2. Delivers excellent sag resistance and anti-settling performance without compromising flow or leveling.

  3. Pre-gelated and organically modified for rapid, low-shear dispersion and consistent rheology development.

  4. Compatible with a broad range of resins, pigments, and additives in architectural and industrial coatings.

  5. Enables formulation flexibility with minimal impact on gloss, color acceptance, or film integrity.

Typical Applications Of BASF Attagel 50 Thixotropic Thickener

  1. Architectural interior and exterior latex paints.

  2. Industrial maintenance coatings including primers and topcoats.

  3. Water-based wood stains and varnishes.

  4. Anti-corrosive coatings for metal substrates.

  5. Tile grouts and cementitious repair mortars.

Specifications Of BASF Attagel 50 Thixotropic Thickener

Chemical TypeOrganically modified sodium bentonite clay
Product FormFree-flowing white to light tan powder
AppearanceFine, dry granular powder
Primary ApplicationsThickening and rheology control in waterborne and solventborne coatings, construction mortars, and sealants
Key FeaturesThixotropic, shear-thinning, anti-sag, anti-settling
BenefitsImproved storage stability, enhanced application properties, reduced roller spatter, uniform film build
pH Range (10% slurry)8.5 – 10.5
Volatile Content (wt%, 105°C)≤ 8%


BASF Attagel 50 Thixotropic Thickener – Frequently Asked Questions (FAQ)

Q1: What is the primary function of Attagel 50 in formulations?

A: Attagel 50 is a purified sodium magnesium lithium smectite clay designed to provide thixotropic rheology control—enabling stable suspension of solids, anti-sag performance in vertical applications, and improved application properties such as brushability or sprayability without compromising final film integrity.


Q2: How does Attagel 50 differ from conventional bentonite thickeners?

A: Unlike standard bentonites, Attagel 50 offers enhanced compatibility with polar solvents and water-based systems due to its optimized lithium content and controlled particle morphology. It delivers more predictable, reproducible thickening behavior with reduced sensitivity to electrolytes and lower gel time variability.


Q3: Is Attagel 50 suitable for waterborne coatings and adhesives?

A: Yes—Attagel 50 is widely used in waterborne architectural paints, industrial coatings, and water-based adhesives where controlled viscosity, storage stability, and resistance to settling are required. Its performance is optimized for neutral to mildly alkaline pH ranges common in such systems.


Q4: What is the typical dosage range for effective thickening?

A: Dosage depends on formulation requirements and desired rheological profile, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight of the total formulation. Optimal levels should be determined through laboratory evaluation under representative shear and aging conditions.


Q5: Does Attagel 50 require activation or pre-treatment before incorporation?

A: Attagel 50 is supplied in a ready-to-use form and does not require acid activation or extended hydration periods. For best dispersion, it is recommended to add gradually under high-shear mixing into the liquid phase—preferably early in the milling or let-down stage—to ensure full exfoliation and uniform distribution.



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