CRAYVALLAC® ULTRA

CRAYVALLAC® ULTRA is a pure polyamide especially recommended in 2K epoxy primers for its robustness. CRAYVALLAC® ULTRA is a micronised amide wax rheology modifier offering very good recoatability for ambient curing solvent-based epoxy coatings. CRAYVALLAC® ULTRA has been designed to overcome those difficulties which exist with older type organo-wax rheology modifiers e.g. seeding, false-body and migration of readily dissolved species to the surface. Consequently, when used in strong solvent systems, coatings formulated using CRAYVALLAC® ULTRA offer an enhanced performance and very good recoatability.

Principal: Arkema Rheology and Specialty Additives Group

Functions: Rheology Modifier

Chemical Family: Polyamides

End Uses: 2K (2 component) Coating, Epoxy Coating, Primer, Solventborne Coating

Compatible Polymers & Resins: Epoxies (EP)

Labeling Claims: Bio-based, 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
Country of Origin
Function
Rheology Modifier
Product Code
MITM01592
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Key Benefits

Formulation

  •  Easy handling

Storage

  • Antisettling
  • In-can appearence
  • Syneresis resistance
  • Viscosity stability

Application

  • Edge-coverage
  • Sag resistance
  • Sprayability

Film Properties

  • Anticorrosion
  • Gloss
  • Levelling

Safer Solutions

  • APEO free
  • Heavy Metal free
  • Solvent free
  • Total Bio content: 86%
Product Features
  • Anticorrosion
  • Gloss
  • Levelling

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Markets
Applications
Product Applications

Coatings & Inks
 Industrial Coating

Processing Information
  • The use of high-speed dispersers is ideal for the incorporation and activation of CRAYVALLAC® ULTRA in that they develop both the necessary level of shear and temperature. CRAYVALLAC® ULTRA is best added along with the initial charge of resin during the pigment dispersion and grind stage.
  • Efficient activation will be achieved by allowing the temperature during dispersion to rise to 45 - 65°C (113- 149°F), but more preferably from 55 - 65°C (131 -149°F), and maintaining this condition of dispersion and temperature for 20 - 30 minutes.
  • The activation process constitutes the conversion of the CRAYVALLAC® ULTRA particles to an interacting network of fibre-like particles.
  • It is this network that gives rise to the final coating’s shear thinning rheology.
  • This shear thinning characteristic 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.
  • Immediately following application, where low shear conditions again predominate, the coating’s viscosity undergoes a time dependent recovery as the network reestablishes itself.
  • This time dependence is known as thixotropy and enables the final coating to attain very good levelling and sag resistance.

Properties

Physical Form
Soluble In

Regulatory & Compliance

Certifications & Compliance
Contains any chemicals listed on Prop 65 (including impurities, residues, catalysts, monomers, and by-products and excluding heavy metals)?

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000003
Principal

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

Appearance
Off white micronized powder
Color (SDS)
White
Insoluble in (SDS)
Water
Item Number
Odor (SDS)
Odorless
Other Hazards
Specific target organ toxicity - repeated exposure: lungs, May form combustible dust concentrations in air.
USA/DOT UN Number
Not Applicable
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life48.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Bulk Density0.4-0.6 g/cm³g/cm³
Melting Point121.0 °C°C
Specific Gravity0.98-
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)0.2-1.5 %%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)min. 842.0 °F°F
Density (SDS)1.02 g/cm³g/cm³at 20°C
Flash Point (SDS)min. 149.0 °F°F
Melting Point (SDS)250.0 °F°F
Specific Gravity (SDS)1.02-at 20°C