Enhanced TDS
Identification & Functionality
- CASE Ingredients Functions
- Function
- Rheology Modifier
- Product Code
- MITM01577
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Product Benefits
- CRAYVALLAC® PA3 S 12 is a pre-activated amide wax dispersed in a mixture of styrene and alcohols.
- It is a rheology modifier in paste form for post addition in UPR, gelcoats and wood coatings.
- The use of CRAYVALLAC® PA3 S 12 provides a very simple and direct means of introducing shear thinning rheology with thixotropic viscosity recovery to these systems. CRAYVALLAC® PA3 S 12 is also a very cost efficient alternative to organoclays and can also be used in combination with fumed silicas and organoclays.
- CRAYVALLAC® PA3 S 12 is a pre-activated amide paste and exists in the form of crystalline fibres.
- In the final system, these fibres form an interacting network.
- It is this fibrous network that 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. Immediately following application, where low shear conditions again predominate, 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. In order to obtain maximum efficiency from CRAYVALLAC® PA3 S 12, it is necessary to disperse this product without destroying the crystalline fibres.
- It is therefore preferable to incorporate CRAYVALLAC® PA3 S 12 under low to medium shear conditions over as short a time period as possible.
- There are two main methods by which CRAYVALLAC® PA3 S 12 can be incorporated:
- Direct incorporation CRAYVALLAC® PA3 S 12 can be directly added into pigmented systems such as gelcoats under medium shear conditions.
- Master batch preparation A master batch can be prepared by dispersing CRAYVALLAC® PA3 S 12 in a resin and/or solvent using low to medium shear rates.
- The dispersion can then be added to the finished formulation.
- Due to the multitude of formulations, processing methods and application conditions used in the field, we strongly recommend that all products containing CRAYVALLAC® PA3 S 12 be tested thoroughly to ensure suitability for their intended end use.
- In particular, the suitability of this product for application by hot- spray, or curing in poorly ventilated areas may require additional validation.
- Performance Benefits
- Suitable for post-addition
- Easy to incorporate
- Imparts shear-thinning rheology with thixotropic viscosity recovery
- Very good sag resistance
- Very good anti-settle properties
- Excellent pigment and filler suspension during storage
- Good recoatability / Secondary bonding
- Excellent transparency
Applications & Uses
- Coating End Applications
- Compatible Substrates & Surfaces
- Markets
- Applications
Properties
- Physical Form
Regulatory & Compliance
- Certifications & Compliance
- Contains any chemicals listed on Prop 65 (including impurities, residues, catalysts, monomers, and by-products and excluding heavy metals)?
Packaging & Availability
- Packaging Type
Principal Information
- Group Principal Number
- S000003
- Principal
Storage & Handling
- Storage Conditions
- Use corrosion- resistant storage tanks and piping.
- Air-operated diaphragm pumps are preferred.
- Avoid temperature extremes.
- Do not freeze; store between 5°- 30°C.
- Under these conditions the product may be stored for up to 12 months from production date.
Other
- ADR/RID/ADN Proper Shipping Name
- Solids containing flammable liquid, N.O.S. (styrene, ethanol)
- ADR/RID/ADN UN Number
- UN3175
- Appearance
- Off white paste
- Color (SDS)
- Off-white
- IMO/IMDG EmS Fire
- F-A
- IMO/IMDG EmS Spill
- S-I
- Insoluble in (SDS)
- Water
- Item Number
- Odor (SDS)
- Organic
- Other Hazards
- Inhalation: At high vapour/fog concentrations : Irritating to respiratory system. Risk of : headache Dizziness Stomach/intestinal disorders Drowsiness NauseaSkin contact: Repeated or prolonged exposure may cause skin irritation and dermatitis, due to degreasing properties of the product. May cause sensitisation by skin contact.Ingestion: At high dose : Risk of : Nausea Gastrointestinal problems Vomiting Central nervous system depressionEnvironmental Effects:Toxic to fish. Toxic to daphnia. Toxic to algae.Physical and chemical hazards:Highly flammable. Thermal decomposition giving toxic products.Decomposition products: See chapter 10Other:Results of PBT and vPvB assessment : According to REACH regulation, annex XIII, this mixture contains no substance meeting PBT and vPvB criteria.
- USA/DOT Proper Shipping Name
- Solids containing flammable liquid, N.O.S. (styrene, ethanol)
- USA/DOT UN Number
- UN3175
- Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 12.0 mo - Material Composition
Value Units Test Method / Conditions Non-Volatile Content 11.0-13.0 % Internal Method at 150°C - Application Information
Value Units Test Method / Conditions Dosage (Use Level) 0.5-2.0 % anti-Settling Dosage (Use Level) 2.0-5.0 % - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Burning Rate (SDS) min. 2.2 mm/s Density (SDS) 0.8 g/cm³ at 20°C Flash Point (SDS) 31.0 °C Setaflash Lower Flammable Limit (SDS) 3.0-3.3 %(V/V) Ethanol Partition coefficient n-octanol/water (SDS) 6.21 - Log Kow, n-Octanol/Water Partition coefficient n-octanol/water (SDS) 2.96 - n- octanol/water, log Pow, styrene Upper Flammable Limit (SDS) 19.0 %(V/V) Ethanol