CRAYVALLAC® LA-377

CRAYVALLAC® LA-377 is a liquid rheology modifier designed for post-addition to water-based coatings, particularly water-dilutable alkyds and acrylic emulsions. Here are its typical characteristics and properties:

Nature: Urea urethane
Appearance: Clear liquid
Solid Content: 50%
Active Content: 50%
Solvent: DMSO (Dimethylsulfoxide)

Description:
CRAYVALLAC® LA-377 is composed of a modified urea dissolved in DMSO. It serves as a pourable liquid rheology modifier for post-addition to water-based coatings. Developed to ensure particular suitability for metal coating applications, its formula is lithium chloride-free. CRAYVALLAC® LA-377 should be added to the coating as a slow stream under low to medium shear conditions to ensure sufficient dispersion. Efficient stirring is necessary to ensure homogeneity, but elevated temperatures are not required for activation, and excessive shear should be avoided.

Recommended Addition Level:
0.5-2.0% under low shear dispersion, Post-addition.

Standard Packaging:
Available in 200 Kg drums or 25 Kg pails. Other packaging options may be available upon request.

Handling & Storage:
Store 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 to prevent premature crystallization of the modified urea. Use within 12 months from production under these conditions.

Processing Instructions:
CRAYVALLAC® LA-377 should be added to the coating as a slow stream under low to medium shear conditions to ensure sufficient dispersion. Although efficient stirring is required to ensure homogeneity, elevated temperatures are not required for activation, and the use of excessive shear should be avoided.

Market:

• Coatings & Inks
  • Architectural Coating
  • Flooring
  • Graphic Arts
  • Industrial Coating
  • Textile & Leather Coating
  • UV Coatings
  • Inks

Key Benefits:

• Formulation: Easy handling, post-addition, ready to use.
• Storage: Antisettling, in-can appearance, syneresis resistance, viscosity stability.
• Application: Brushability, rollability, sprayability, temperature resistance, edge-coverage, sag resistance.
• Film Properties: Gloss, leveling, transparency, pigment orientation.