CRAYVALLAC® SF

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Description

CRAYVALLAC® SF is a proprietary amide-modified hydrogenated castor oil rheology modifier designed for solvent-based systems, particularly suitable for applications requiring enhanced tolerance to temperature and solvent strength. Here are its typical characteristics and properties:

Nature: Castor derivatives
Appearance: Off-white micronized powder
Solid Content: 100%
Active Content: 100%
Specific Gravity: 1.02
Particle Size Distribution: DV.2 min: 4 µm / DV.8 max: 20 µm

Description:
CRAYVALLAC® SF exhibits an enhanced tolerance to strong solvents and high processing temperatures due to its unique performance-enhancing amide. Upon activation, its particles form an interacting network of fiber-like particles, resulting in shear-thinning rheology. This behavior ensures high viscosity under low shear rates and low viscosity under higher application shear rates, providing excellent control of sedimentation combined with ease of application.

Recommended Addition Level:
0.2-1.5% under heat and shear.

Standard Packaging:
Available in 20 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 24 months from production under these conditions.

Processing Instructions:
High-speed dispersers are ideal for full dispersion and activation, as they generate the necessary shear and temperature. Activation at incorrect temperatures or for insufficient time may result in inefficient network formation or dissolution.

Market:

Electrical & Electronics
Coatings & Inks
- Architectural Coating
- Graphic Arts
- Industrial Coating
Adhesives & Sealants
- Assembly
- Other Adhesives
- Sealants

Key Benefits:

Formulation: Easy handling.
Storage: Antisettling, in-can appearance, syneresis resistance, viscosity stability.
Application: Edge-coverage, brushability, rollability, sag resistance, temperature resistance.
Film Properties: Gloss, leveling, texturing, transparency.

Files

TDS_CRAYVALLAC®-SF_en_WW.pdf View

Application

Adhesives & Sealants

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Composition
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- Feldspar-group minerals: 87% or more by weight.
Hazards Identification
- Classification:
  - Specific target organ toxicity - repeated exposure, Category 2 (Lungs).
- Hazard Statements:
  - H373: May cause damage to organs (lungs) through prolonged or repeated exposure if inhaled.
- Precautionary Statements:
  - P260: Do not breathe dust.
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WALOCEL™ CRT 10000 G Sodium Carboxymethylcellulose is a specific type of sodium carboxymethylcellulose (CMC) produced by The Dow Chemical Company. Here's a detailed overview based on the provided sales specification:
Product Overview:
- Product Name: WALOCEL™ CRT 10000 G
- Chemical Name: Sodium Carboxymethylcellulose
- Specification Number: 000000127502
- Previous Specified Material: 00160302
- Trademark: WALOCEL™ (Trademark of The Dow Chemical Company)
Specifications and Testing Requirements:
1. Active Content (Dry Basis):
  - Minimum: 99.00%
  - Method: CE-55.4
  - Test Frequency: Audit basis
2. Substitution Degree:
  - Range: 0.82 — 0.95
  - Method: CE-28.4
3. Moisture Content (As Packaged):
  - Maximum: 8.0%
  - Method: CE-7.1
4. pH Value (1% Aqueous Solution):
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  - Method: CE-8.1
5. Total Salt Content (Dry Basis):
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  - Method: CE-15.4
  - Test Frequency: Audit basis
6. Viscosity (Brookfield, LVT, SP.3, 30 RPM, 1% Aqueous Solution, Dry Basis, 25°C):
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  - Method: CE-5.15
Product Characteristics:
- Active Content: Indicates the amount of carboxymethylcellulose present in the product.
- Degree of Substitution: Refers to the extent to which the cellulose molecule has been substituted with carboxymethyl groups. This affects the solubility and viscosity.
- Moisture Content: The amount of water present in the product. This can affect the product’s handling and performance.
- pH Value: Measures the acidity or alkalinity of a 1% aqueous solution of the product.
- Total Salt Content: Indicates the amount of salt present, which can influence the viscosity and stability of the product.
- Viscosity: A measure of the product's thickness or resistance to flow in an aqueous solution. This is important for its functionality in various applications.
Usage and Safety:
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Product Overview:
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- CAS Number: 29911-27-1
Description:
DOWANOL™ DPnP is characterized by a slower evaporation rate compared to DOWANOL™ PnP glycol ether and is slightly more hydrophobic. It has a mid-range balance between hydrophobic and hydrophilic properties and offers significant water solubility. It is highly effective as a coalescent in coatings, providing excellent film properties and compatibility with hydrophobic materials.
Physical Properties:
- Molecular Weight: 176.2 g/mol
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- Flash Point (Setaflash Closed Cup): 88°C (190°F)
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- Specific Gravity (25/25°C): 0.919
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  - @ 25°C: 0.916 g/cm³ (7.65 lb/gal)
- Viscosity at 25°C: 11.4 cP (mPa•s)
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- Specific Heat at 25°C: 1.94 J/g/°C
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- Autoignition Temperature: 205°C (401°F)
- Evaporation Rate:
  - n-Butyl Acetate = 1.0: 0.014
  - Diethyl Ether = 1.0: 903
- Solubility at 25°C:
  - Solvent in Water: 17.2 g/100 g (15 wt%)
  - Water in Solvent: 22.5 g/100 g (18.5 wt%)
Hansen Solubility Parameters:
- Dispersion (d): 15.0 (J/cm³)^(1/2)
- Polar (p): 3 (J/cm³)^(1/2)
- Hydrogen Bonding (h): 9.6 (J/cm³)^(1/2)
Flammable Limits (Vol.% in Air):
- Lower: 0.68%
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Product Overview:
- Product Name: TEGO® Airex 902 W
- Manufacturer: Evonik Operations GmbH
Description:
TEGO® Airex 902 W is a highly effective and compatible deaerator emulsion based on polyether siloxane technology. It is particularly effective against both micro-foam and macro-foam.
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- Before use, mix briefly with low shear forces.
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CRAYVALLAC® SF

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CRAYVALLAC® SF

Manufacturer

Main Actions

Description

Files

Categories

Application

Add a review

Leave a Reply · Cancel reply

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Siliplast 810

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