Pangel® OM4 is a rheological additive designed for intermediate to low polarity systems, formulated with highly purified bentonite clay. It's suitable for use with aliphatic solvents as well as mineral or synthetic oils. This standard organo-bentonite requires pregel preparation using a polar activator, making it ideal for low to medium-polarity solvent-based systems.

Chemical Family: Bentonite

Labeling Claims: High Purity

Compatible Substrates & Surfaces: Paper

Compatible Polymers & Resins: Polyesters

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Identification & Functionality

Features & Benefits

Labeling Claims
CASE Ingredients Features
Product Features

Pangel® OM4 is a standard organo-bentonite requiring pregel preparation with use of polar activator. Specially for low to medium polarity solvent-based systems

Applications & Uses

Markets
Applications
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Fluids & Lubricants Type
Coating End Applications
Industrial Additives End Use
Ink & Toner End Applications
Product Uses

Use of Pangel® OM4 as a rheological additive is recommended in the following applications:

  • Anticorrosive coatings
  • Solvent asphalt coatings
  • Bituminous undercoats
  • Waterproofing and Pavement repair
  • It requires the use of a polar activator at 30 - 60% on clay basis. This will normally be mixed with 5% of water in the mix
Polar Activator Role
  • Pangel® OM4 require the use of a polar activator at 30-60% on clay basis. This will normally be mixed with 5% of water in the mix. They are used for promoting the aggregation of bentonite platelets.
  • Polar activators are used when a pregel is made. Pregel normal concentration is between 5-6% clay concentration in solvent.

Recommended polar activator (based on Pangel® OM4 weight)

Metanol/H₂0 (95:5) 33%
Ethanol/H₂0 (95:5) 50%
Acetone/H₂0 (95:5) 60%
Propylene carbonate/H₂0 (95:5) 33%
Propylene carbonate 33%

Properties

Physical Form
Appearance
Free-flowing powder
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Moisture Contentmax. 3.5%-
Loss on Ignition (at 1000°C)max. 35.0%-
Particle Size Distribution (by Dry Sieving Residue on 75 μm)max. 2.0%-
Product Properties

Pangel® OM4 is an organobentonite recommended for providing the following
properties in solvent-borne systems:

  • Thixotropic and pseudoplastic effects.
  • Sag control.
  • Excellent levelling.
  • Prevents pigment from long-term storage settling.
  • High viscosity and excellent consistency over a wide range of temperatures.

Storage & Handling

Shelf Life
2 years
Storage Condition

Stored in dry place protected from humidity and preserved in original package