CRAYVALLAC® SL

CRAYVALLAC® SL is a high performance micronised amide wax rheology modifier designed for the high temperature manufacture of moisture curing methoxysilanes systems, where processing temperatures typically lie within the range 90 – 115°C. CRAYVALLAC® SL particles are converted to an interacting network of crystalline fibres. It is this network that gives rise to the shear thinning rheology. This shear thinning characteristic provides for a low viscosity at the shear rates associated with application by extrusion, and a very high viscosity under the low shear rates experienced after application. The net result is ease of application followed by excellent sag and slump resistance.

Principal: Arkema Rheology and Specialty Additives Group

Functions: Rheology Modifier

Chemical Family: Polyamides

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
MITM01587
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

  • Gunnability
  • Slump resistance
  • Temperature resistance

Safer Solutions

  • APEO Free
  • Heavy Metal Free
  • Solvent Free
  • Total Bio content: 93%

Applications & Uses

Markets
Applications
Product Applications

Adhesives & Sealants

  •  Assembly
  •  Other Adhesives
  •  Sealants
Processing Instructions
  • The successful manufacture of methoxysilane based sealants is very dependent on the careful control of moisture levels throughout manufacture and storage.
  • For this reason it is normal practice to pre-dry all pigments and extenders prior to dispersion with the methoxysilane polymer.
  • Alternatively, special grades of low moisture content ingredients may be used.
  • The use of vacuum processing at elevated temperatures serves two key purposes; it prevents the take up of moisture during processing and facilitates the removal of any unwanted water residues introduced with the raw materials.
  • With moisture cured methoxysilane based sealants, we strongly recommend that all additives be quickly dispersed and not allowed to remain in direct contact with the resin component.
  • Prolonged contact may sometimes result in the formation of an insoluble fine skin which later appears as small particles in the final sealant.

Properties

Physical Form
Soluble In

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)
Off-white
Insoluble in (SDS)
Water
Item Number
Odor (SDS)
Odorless
Other Hazards
Handle in accordance with good industrial hygiene and safety practice. (powder) Mechanical irritation effects from dust exposure are possible at ambient temperature.
USA/DOT UN Number
Not Applicable
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life48.0mo
Physical Properties
ValueUnitsTest Method / Conditions
Bulk Density0.4-0.6g/cm³
Melting Point125.0°C
Specific Gravity0.99-
Storage Temperature41.0-86.0°F
Material Composition
ValueUnitsTest Method / Conditions
Active Content100.0%
Solid Content100.0%
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)1.0-5.0%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)min. 752.0°F