CRAYVALLAC® PA4 X 20

CRAYVALLAC® PA4 X 20 is a rheology modifier pre-activated amide wax supplied in a mixture of xylene and alcohol. It is a rheology modifier in paste form with enhanced transparency, excellent anti-sagging and anti-settling properties.CRAYVALLAC® PA4 X 20 is supplied in the form of crystalline fibres. In a coating system, these fibres form an interacting network. This network gives rise to the shear thinning rheology of the final coating. 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.

Principal: Arkema Rheology and Specialty Additives Group

Functions: Rheology Modifier

Chemical Family: Amide Waxes, Polyamides

End Uses: Leather Coating, Textile Coating

Labeling Claims: Bio-based, Carcinogenic, Mutagenic, or Reproductive Toxic (CMR) Substances-free, Heavy Metal-free, No Added Alkylphenol Ethoxylates (APEO)

Physical Form: Paste

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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Carrier
Chemical Family
Country of Origin
Function
Rheology Modifier
Product Code
MITM01583
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Product Features
  • Gloss
  • Levelling
  • Transparency
Key Benefits

Formulation

  • Ready to use
  • Easy handling
  • Post addition

Storage

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

Application

  • Edge-coverage
  • Sag resistance
  • Sprayability

Film Properties

  • Gloss
  • Levelling
  • Transparency

Safer Solutions

  • APEO Free
  • Heavy Metal Free

 

Applications & Uses

Coating End Applications
Markets
Applications
Product Applications

Coatings & Inks

  •  Graphic Arts
  •  Industrial Coating
  •  Textile & Leather Coating
Processing Instructions
  • In order to obtain maximum efficiency from CRAYVALLAC® PA4 X 20, it is necessary to disperse this product without destroying the crystalline fibres.
  • It is therefore preferable to incorporate CRAYVALLAC® PA4 X 20 under low to medium shear conditions over as short a time period as possible.
  • CRAYVALLAC® PA4 X 20 can be incorporated either by post-addition or by a masterbatch method.
  • Post addition: When using a high-speed disperser, CRAYVALLAC® PA4 X 20 is added during the final stages of production, when the coating has been partially thinned to a viscosity of 600-800mPas (ICI cone and plate at 10000s-1) and the peripheral speed reduced to approximately 4ms-1.
  • Too high a speed will result in destruction of the active fibres and reduced performance, whereas, too low a speed will result in extended incorporation times.
  • In general, the time required for incorporation should be kept to a minimum in order to minimise damage due to overshear.
  • Master batch preparation: A master batch can be prepared by dispersing CRAYVALLAC® PA4 X 20 in a resin and/or solvent using low to medium shear rates.
  • This dispersion can then be added to the finished coating.

Properties

Physical Form

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 24 months from production.

Other

Appearance
Off white paste
Color (SDS)
Off-white
IMO/IMDG Proper Shipping Name
Solids containing flammable liquid, N.O.S. (xylenes, ethanol)
IMO/IMDG Technical name (N.O.S.)
Xylenes, Ethanol
IMO/IMDG UN Number
UN3175
Insoluble in (SDS)
Water
Item Number
Odor (SDS)
Sweet, oily
Other Hazards
Specific target organ toxicity repeated exposure:auditory system, lungs, nervous system, sensory organs, Due to the presence of the solvent: Prolonged or repeated exposure can cause hearing loss. Prolonged or repeated skin contact may cause defatting resulting in drying, redness and rash. Contains high molecular weight polymer(s), Dried product may stick to the skin causing irritation upon removal.
Protect from Freezing
Yes
USA/DOT Proper Shipping Name
Solids containing flammable liquid, N.O.S. (xylenes, ethanol)
USA/DOT Technical name (N.O.S.)
Xylenes, Ethanol
USA/DOT UN Number
UN3175
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life24.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity0.88-
Storage Temperature41.0-86.0 °F°F
Material Composition
ValueUnitsTest Method / Conditions
Active Content20.0 %%
Solid Content20.0 %%
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)0.5-5.0 %%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Burning Rate (SDS)20.0 mm/smm/sWetted Zone Does Not Stop Fire
Density (SDS)0.86 g/cm³g/cm³at 20°C
Flash Point (SDS)68.0 °F°FSetaFlash Closed Cup
Specific Gravity (SDS)0.86-at 20°C, water = 1