CRAYVALLAC® LA-150

CRAYVALLAC® LA-150 is a new pourable liquid rheology modifier supplied in Dimethylsulfoxide (DMSO) for post addition to solvent based systems.CRAYVALLAC® LA-150 is a post-addition rheology modifier composed of a modified urea dissolved in DMSO. When added to the final system, the DMSO is diluted and the modified urea crystallizes out as very fine fibres which build into a three-dimensional interacting network. It is this network that gives rise to the system’s shear thinning rheology and time dependent viscosity recovery. The result is excellent control of sedimentation combined with ease of application. Immediately following application, where low shear conditions again predominate, the system’s viscosity undergoes a time dependent recovery as the network re-establishes itself. This time dependency is known as thixotropy and enables the final system to attain very good levelling.

Principal: Arkema Rheology and Specialty Additives Group

Functions: Rheology Modifier

Chemical Family: Urea & Urea Derivatives, Urethanes

End Uses: Leather Coating, Solventborne Coating, Textile Coating

Labeling Claims: Alkylphenol Ethoxylate (APEO)-free, No Added Alkylphenol Ethoxylates (APEO)

Physical Form: Liquid

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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Carrier
Chemical Family
Country of Origin
Function
Rheology Modifier
Product Code
MITM01436
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Product Benefits

Key Benefits:

  • Formulation:

Easy handling

Post addition

Ready to use

  • Storage:

Antisettling

In-can appearance

Syneresis resistance

Viscosity stability

  • Application:

Brushability

Rollability

Temperature resistance

  • Film Properties:

Gloss

Levelling

Transparency

  • Safer Solutions:

APEO Free

  • Thickening Mechanism:

Non Associative

  • Viscosity Contribution:

Low Shear contribution

Mid Shear contribution

Applications & Uses

Application Method
Coating End Applications
Markets
Applications
Processing Information
  • CRAYVALLAC® LA-150 should be added to the coating as a slow stream under low to medium shear conditions to ensure efficient dispersion.
  • Although efficient, stirring is required to ensure homogeneity; elevated temperatures are not required for activation.
  • Addition to very polar and non-polar systems may result in incompatibility.
  • This will reflect itself in poor anti-settle and sag resistance performance or seeding due to the crystals clumping together.
  • Therefore it is essential to check compatibility, and if necessary optimise the Solvent-balance.
  • CRAYVALLAC® LA-150 contains chloride ions.
  • If this product is stored in metal containers, or is used in coatings intended for direct contact with metal substrates, additional testing is recommended to assess the potential of these ions for corrosion.

Properties

Physical Form

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 20°C (68°F) and 30°C (86°F).
  • Use corrosion-resistant storage tanks and piping.
  • Avoid exposure to direct sunlight or frost.
  • Containers must be tightly closed after use to exclude moisture.
  • The absorption of moisture will result in the premature crystallization of the modified urea. In these conditions, this product should be used within 12 months from production.

Other

Appearance
Clear liquid
Color (SDS)
Colorless to yellow
Insoluble in (SDS)
Water
Item Number
Odor (SDS)
Solvent like, sulphurous
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 7.0GardnerGardner Color Scale
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life12.0mo
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.11-
Storage Temperature68.0-86.0°F
Viscosity300.0-700.0mPa.sat 25°C, 10000s⁻¹
Material Composition
ValueUnitsTest Method / Conditions
Active Content52.0%
Solid Content52.0%
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)0.2-2.0%under low shear dispersion
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Density (SDS)1.1g/cm³at 20°C
Flash Point (SDS)min. 203.0°F
Specific Gravity (SDS)1.1-at 20°C, water = 1
Vapor Pressure (SDS)0.417mm Hgat 20°C