CRAYVALLAC® PF

CRAYVALLAC® PF is a modified micronised hydrogenated castor oil rheology modifier specially designed to facilitate the incorporation in powder form for betteractivation and easier handling. The activation process is the conversion of the CRAYVALLAC® PF fine particles to an interacting network of fibers. It is this network that gives rise to the final system’s shear thinning rheology. This shear-thinning behavior provides a very high viscosity under the low shear rates associated with sedimentation, and a low viscosity at the much higher application shear rates. The net result is excellent control of sedimentation combined with ease of application. CRAYVALLAC® PF is suitable for a multitude of applications.

Principal: Arkema Rheology and Specialty Additives Group

Functions: Rheology Modifier

Chemical Family: Castor Oil Derivatives

Labeling Claims: Heavy Metal-free, No Added Alkylphenol Ethoxylates (APEO), Solvent-free

Physical Form: Powder

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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Chemical Family
Function
Rheology Modifier
Product Code
MITM16013
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Key Benefits
  • Formulation

Ready to use

Easy handling

  • Storage

Antisettling

In-can appearence

Syneresis resistance

Viscosity stability

  • Application

Edge-coverage

Brushability

Rollability

  • Film Properties

Gloss

Levelling

Transparency

  • Safer Solutions

APEO Free

Bacteria resistance

Heavy Metal Free

Solvent-free

Product Features
  • Gloss
  • Levelling
  • Transparency

Applications & Uses

Markets
Applications
Product Applications
  • Coatings & Inks
  • Architectural Coating
  • Industrial Coating

Adhesives & Sealants

  • Assembly
  • Other Adhesives
  • Sealants
Processing Instructions
  • CRAYVALLAC® PF is best incorporated during the pigment dispersion stage using a high-speed disperser that generates both the necessary shear and temperature.
  • The increased specific surface area available thanks to its finer particles contributes to obtain the maximum rheological performance.
  • For instance in aliphatic solvent based coating, this maximum performance would be obtained for a 20 – 30 minutes long dispersion at a temperature of 30 – 55 °C (86 – 131 °F).
  • The activation process is the conversion of the CRAYVALLAC® PF fine particles to an interacting network of fibers.
  • It is this network that gives rise to the final system’s shear thinning rheology.
  • This shear-thinning behavior provides a very high viscosity under the low shear rates associated with sedimentation, and a low viscosity at the much higher application shear rates.
  • The net result is excellent control of sedimentation combined with ease of application.
  • The viscosity recovery is controlled so that the network reestablishes itself quickly but smoothly so as to both prevent sag and achieve a good levelling.

Properties

Physical Form

Storage & Handling

Storage Conditions
  • It should be stored in the original containers in a dry place at temperatures between 5°C (41°F) and 30°C (86°F).
  • Avoid exposure to direct sunlight or frost.
  • In these conditions, this product should be used within 48 months from production.

Other

Active Content
100.0 %
Appearance
Off white micronized powder
Bulk Density (SDS)
400.0-600.0 kg/m³
Color (SDS)
Off-white
Decomposition Temperature (SDS)
min. 300.0 °C
Density (SDS)
0.97 g/cm³
Dosage (Use Level)
0.2-3.0 %
Group Principal Number
S000003
Odor (SDS)
Odorless
Other Hazards
Irritation: Slightly irritating to skin. Slightly irritating to eyes, Readily biodegradable., In the presence of an ignition source: Dust may form explosive mixture in air. Thermal decomposition giving toxic products. Decomposition products: See chapter 10, According to REACH regulation, annex XIII, the substance does not meet PBT and vPvB criteria., Based on the available information, it is not possible to conclude on the endocrine disruptor potential.
Particle Size
min. 2.0 µm
Partition coefficient n-octanol/water (SDS)
18.75
Principal
Shelf Life
48.0 mo
Solid Content
100.0 %
Specific Gravity
1.01
Storage Temperature
41.0-86.0 °F
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life48.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Particle Sizemin. 2.0 µmµm
Specific Gravity1.01-
Storage Temperature41.0-86.0 °F°F
Material Composition
ValueUnitsTest Method / Conditions
Active Content100.0 %%
Solid Content100.0 %%
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)0.2-3.0 %%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Bulk Density (SDS)400.0-600.0 kg/m³kg/m³
Decomposition Temperature (SDS)min. 300.0 °C°C
Density (SDS)0.97 g/cm³g/cm³at 20°C
Partition coefficient n-octanol/water (SDS)18.75-Log Kow, n-Octanol/Water