ACTI-GEL 208®

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What is Acti-Gel® 208


Acti-Gel® 208 is a low dose rheology modifier & anti-settling agent that provides:

  • Superior particle suspension 
  • Stabilizes mix designs
  • Improves flowability, pump ability and performance of the formula.
  • Acti-Gel® 208 is available in both Liquid & Dry forms.

 

 The Science Behind Acti-Gel® 208


  • Acti-Gel® 208 is a highly purified Magnesium Alumino Silicate, intended for high performance use.

  • Acti-Gel® 208 is made from a wet process which significantly removes most of the grit (SiO2, CaCO3) and other impurities (Smectite).

  • Acti-Gel® 208 is made without grinding.

  • The Magnesium Alumino Silicate “Bristles” are chemically exfoliated.

  • The impurities are mechanically removed.

  • Pure, uniform size and shaped particles remain.

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  • Acti-Gel® 208 has an average particle length of 1.5 to 2 µm and an average Φ = 30 nm.
  • Acti-Gel® 208 “bristles” are positively charged on the ends and negatively charged along the axis.
  • Electro-Mechanical interaction is what enables Acti-Gel® 208 to disperse.

How It Works

Acti-Gel® 208 particles are  electrically charged which enables it to gel with other particles in the formula via Electro-Mechanical interaction.


Static state:

  • At rest, Acti-Gel® 208 particles form a 3-dimensional lattice structure that suspends other particles by creating a "carrier fluid".
  • The carrier fluid prevents segregation enabling a homogeneous mixture.


Dynamic state:

  • In motion, the Acti-Gel® 208 lattice structure quickly disperses and goes in the direction of the flow. This results in lower viscosity and markedly improved flowability and pumpability.


Return to Static state:

  • The rate of ‘thixotropic recovery’ –  the Acti-Gel® 208 lattice structure returns to a stable homogeneous suspension immediately after shear is stopped.

  • This can be repeated indefinitely without loss of performance.


Acti-Gel® 208  advantages:

  • Environmentally safe
  • Non-hydroscopic
  • Temperature Stable (unaffected by freeze/thaw)
  • pH tolerant (pH = 2-13)
  • Shear Stable
  • Indefinite Shelf Life

How To Use It

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  •  Acti-Gel® 208 is typically added last in mixing sequence. 
  • Typical dosage (dry basis) is 0.01% to 0.20% (based on total dry weight of material). 
  •  Acti-Gel® 208 must be mixed with sufficient high shear to "intermingle" the particles.
  •  Acti-Gel® 208  will easily disperse in commercial scale processes.
  • Please contact your local representative for recommendations on specific applications.