CRAYVALLAC® PA4 WDA 12

CRAYVALLAC® PA4 WDA 12 is a pre-activated amide wax supplied in a mixture of mineral spirit (D60) and alcohols. Under paste form for post addition to solvent-based low polarity coating systems, it provides a very simple and direct mean of introducing shear-thinning rheology with thixotropic viscosity recovery to coating formulations. It is a softer version than CRAYVALLAC® PA3 WDA 20 with enhanced ease of incorporation. It is also a very cost efficient alternative to organoclays. The shear-thinning characteristic provides a very high viscosity under the low shear rates and a low viscosity at the much higher application shear rates. The net result is excellent control of sedimentation combined with ease of application. Immediately following application, the coating’s viscosity undergoes a time dependent recovery as the network re-establishes itself. This time dependence is known as thixotropy and enables the final coating to attain very good levelling.

Principal: Arkema Rheology and Specialty Additives Group

Functions: Rheology Modifier

Chemical Family: Amide Waxes, Polyamides

End Uses: Wood Stain

Labeling Claims: Bio-based, Heavy Metal-free, No Added Alkylphenol Ethoxylates (APEO)

Physical Form: Paste

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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Rheology Modifier
Carrier
Alcohol,
Mineral Spirit,
Solvent-based
Chemical Family
Amide Waxes,
Polyamides
Function
Rheology Modifier
Product Code
MITM01582
Technologies
CASE
Product Families
CASE — Additives
Rheology Modifiers & Stabilizers

Features & Benefits

CASE Ingredients Features
Anti-Settling,
Easy Handling,
Easy To Incorporate,
Good Leveling,
Good Sag Control,
High Gloss,
High Shear Thinning,
Highly Thixotropic,
Improved Edge Coverage,
Sag Resistance,
Sprayability,
Syneresis Resistance,
Transparency,
Viscosity Stability
Labeling Claims
Bio-based,
Heavy Metal-free,
No Added Alkylphenol Ethoxylates (APEO)
Product Features
  • Gloss
  • Levelling
  • Transparency

Applications & Uses

Coating End Applications
Wood Stain
Compatible Substrates & Surfaces
Wood
Markets
Paints & Coatings,
Building & Construction
Applications
Paints & Coatings — Building & Construction
Architectural Coatings,
Decorative Paints,
Wood Coatings & Finishes
Paints & Coatings — Industrial Coatings
Industrial Coatings
Building & Construction — Building Envelope & Roofing
Architectural Coatings
Product Applications

Formulation

  • Ready to use
  • Easy handling
  • Post addition

Storage

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

Application

  • Edge-coverage
  • Sprayability
  • Temperature resistance
Product Applications

Coatings & Inks

  • Architectural Coating
  • Industrial Coating
Processing Information
  • In order to obtain maximum efficiency from CRAYVALLAC® PA4 WDA 12, it is necessary to disperse this product without destroying the crystalline fibres under low to medium shear conditions over as short a time period as possible.
  • There are two main methods by which it can be incorporated: Post addition: Using a high-speed disperser, it 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 4m.s-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 minimize damage due to overshear.
  • Master batch: To be prepared by dispersing it 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
Paste
Soluble In
Organic Solvent Soluble

Packaging & Availability

Packaging Type
Pails

Principal Information

Group Principal Number
S000003
Principal
Arkema Rheology and Specialty Additives Group

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
Insoluble in (SDS)
Water
Item Number
ITM06444
Odor (SDS)
Petroleum solvents
Other Hazards
Dried product may stick to the skin causing irritation upon removal. This product may release fume and/or vapor of variable composition depending on processing time and temperature.
Temperature Control
Yes
USA/DOT UN Number
Not Applicable
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)1.0-5.0 %%
Material Composition
ValueUnitsTest Method / Conditions
Active Content12.0 %%
Solid Content12.0 %%
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity0.881-
Storage Temperaturemax. 100.0 °F°F
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)min. 446.0 °F°F
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life24.0-