CRAYVALLAC® SLW

CRAYVALLAC® SLW is a high-performance micronized amide wax rheology modifier specifically designed for the manufacture of one-component Silyl-Terminated-Polymer (STP) based adhesives and sealants. Here are its typical characteristics and properties:

Nature: Polyamide
Appearance: Off-white micronized powder
Solid Content: 100%
Active Content: 100%
Specific Gravity: 0.99
Particle Size Distribution: DV. 1 min: 1.8 µm / DV. 9 max: 15.0 µm

Description:
CRAYVALLAC® SLW is engineered for demanding applications, particularly for highly filled systems and high-tack systems. It facilitates the manufacture of one-component STP-based adhesives and sealants, offering excellent sag and slump resistance. Upon application, CRAYVALLAC® SLW particles form an interacting network of crystalline fibers, providing shear-thinning rheology. This characteristic ensures ease of application followed by outstanding sag and slump resistance, especially in highly demanding applications.

Recommended Addition Level:
1-5% under heat and shear.

Standard Packaging:
Available in 15 kg bags. Other packaging options may be available upon request.

Handling & Storage:
Store 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. Use within 48 months from production under these conditions.

Processing Instructions:
CRAYVALLAC® SLW is specifically designed for the manufacture of one-component STP systems with processing temperatures typically ranging from 55°C to 90°C (130°F to 194°F). It's added along with the initial charge of STP polymer and plasticizer to a vacuum dispersion vessel, followed by pigments and extenders. Efficient activation of CRAYVALLAC® SLW occurs during the vacuum dispersion stage by allowing the batch temperature to rise to 55°C to 90°C (130°F to 194°F) for approximately 30 minutes or until the required level of dispersion is achieved. The activation process converts CRAYVALLAC® SLW particles into an interacting network of crystalline fibers, providing the desired rheological properties.

Market:

• Adhesives & Sealants
  • Assembly
  • Other Adhesives
  • Sealants
  • Structural Adhesives

Key Benefits:

• Formulation: Easy handling, ready to use.
• Storage: Antisettling, in-can appearance, syneresis resistance, viscosity stability.
• Application: Gunnability, slump resistance, temperature resistance.