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AMI Chemical Corporation COAG-40

AMI Chemical Corporation COAG-40 is an additive that controls sag and pigment settling in PVC plastisol coatings and sealants with a Thixotropic effect by creating a more shear-thinning rheological behavior. This means that the flow and ease of application are not affected. COAG-40 can simply be stirred into the formulation. The gel structure is not broken down by heat, giving sag control at all temperatures, even during the gelation process. Stable viscosity is reached in minutes, not hours or days as can be the case with other products such as precipitated and fumed silicas.

Functions: Rheology Modifier, Thinner, Thixotrope

Chemical Family: Sulfonates, Sulfonic Acids & Derivatives

End Uses: Coil Coating, Plastisol Coating, Plastisol Sealant, Screen Printing Ink

Compatible Polymers & Resins: Polyvinyl Chloride (PVC)

Labeling Claims: Phthalates-free

Physical Form: Gel

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Identification & Functionality

CASE Ingredients Functions
Chemical Type
Calcium Sulphonate Complex
Technologies

Features & Benefits

Labeling Claims
Advantages
  • Excellent sag control at all temperatures.
  • Maintains good flow.
  • Prevents "strike-through" in textile coatings.
  • Post-addable: may be used to adjust final viscosity.
  • Effective anti-settling additive.
  • No dusting as with Silicas and similar products.
  • Excellent resting viscosity.

Applications & Uses

Application Method
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Adhesive & Sealant Type
Ink & Toner Type
Applications
  • Dip Coatings
  • Cloth Coatings
  • Underbody Sealants
  • Screen Printing Inks
  • Coil Coatings
  • Pigment Dispersions
Incorporation

COAG-40 is supplied as a soft gel and may be added either at the compounding or the post-addition stage of the formulation, using normal stirrers or mixers.

Formulations containing COAG-40 should be optimized to obtain best sag control and flow. In many cases this requires removal of some plasticizer from the formulation.

Addition Levels

COAG-40 should be used at between 0.5 and 2 percent on total formulation weight.

Properties

Color
Physical Form
Appearance
Light Brown Gel
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (Spindle No. 5, 4 rpms)57000.0Brookfield
Density (77°F)8.15 - 9.5lbs/gal

Packaging & Availability

Packaging Type
Packaging

COAG-40 is supplied in open-top drums and 5 gallon pails.

Storage & Handling

Storage

It should be stored in the original, closed container at temperatures between 40 and 85°F. Shelf life is at least 12 months from the date of shipment. After this, product should be tested before use.