Enhanced TDS
Identification & Functionality
- Chemical Family
- Country of Origin
- Function
- Rheology Modifier
- Product Code
- MITM14287
- Product Functions
- Technologies
- Product Families
Features & Benefits
- Product Features
- Key Benefits
- Formulation
- Easy handling
- Ready to use
- Storage:
- Antisettling
- In-can appearance
- Syneresis resistance
- Application:
- Gunnability
- Slump resistance
- Temperature resistance
- Formulation
Applications & Uses
- Markets
- Applications
- Processing Information
- CRAYVALLAC® SLW is specially designed for manufacture of one-component Silyl- Terminated-Polymer systems where processing temperatures typically lie within the range 55 - 90°C (130 - 194°F).
- With moisture curing Silyl-Terminated-Polymer based sealants, CRAYVALLAC® SLW is generally added along with the initial charge of Silyl-Terminated-Polymer polymer and plasticizer to a vacuum dispersion vessel either with or without heating capability.
- This is then followed by the pigments and extenders. Efficient activation of CRAYVALLAC® SLW is achieved during the vacuum dispersion stage by allowing the batch temperature to rise to 55 - 90°C (130 - 194°F) for approximately 30 minutes or until the required level of dispersion is obtained and a suitable low moisture content has been achieved (typically lower than 800 ppm.).
- Following this, the batch temperature is lowered sufficiently to allow for the safe addition of additives such as moisture scavengers, adhesion promoters and reaction catalysts.
- The activation process constitutes the conversion of the CRAYVALLAC® SLW particles to an interacting network of crystalline fibers.
- 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.
- Activation at too low a temperature, or for too short a time, will result in the formation of an inefficient interacting network and consequently poor sag and slump resistance.
Regulatory & Compliance
- Manufacturing Facility Standards
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 delivery.
Other
- Appearance
- Off white micronized powder
- Color (SDS)
- Off-white
- Insoluble in (SDS)
- Water
- Item Number
- Labeling Claims
- 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.
- Physical Form
- Product End Uses
- Protect from Freezing
- Yes
- Temperature Control
- Yes
- USA/DOT UN Number
- Not Applicable
- Application Information
Value Units Test Method / Conditions Dosage (Use Level) 1.0-5.0 % Under heat and shear - Chemical Properties
Value Units Test Method / Conditions Biocide Content 69.0 % - Material Composition
Value Units Test Method / Conditions Active Content 100.0 % Solid Content 100.0 % - Physical Properties
Value Units Test Method / Conditions Bulk Density 0.4-0.6 g/cm³ Melting Point 128.0 °C Particle Size max. 9.0 µm Specific Gravity 0.99 - Storage Temperature 41.0-86.0 °F - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Autoignition Temperature (SDS) min. 752.0 °F Decomposition Temperature (SDS) 482.0 °F - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 48.0 mo