Polyamide rheology additives CRAYVALLAC MT
Coating raw materials 2025-08-26
Product Benefits
Polyamide rheology additives/CRAYVALLAC MT is a micronised amide modified hydrogenated castor oil rheology modifier for solvent-based and solvent-free coatings. Polyamide rheology additives/CRAYVALLAC MT is suited to coating systems based on aliphatic hydrocarbons, aromatic hydrocarbons and aromatic hydrocarbon/alcohol blends. Compared to the most basic hydrogenated castor oil based rheology modifiers, Polyamide rheology additives/CRAYVALLAC MT is more tolerant to stronger solvents. The result of this is a lowered risk of problems such as seeding and false-body. The following table gives processing temperature guidelines for some solvent systems commonly used in coatings:
Aliphatic hydrocarbons :35 – 75°C (95 – 167°F)
Aromatic hydrocarbons :30 – 50°C (86 – 122°F)
Aromatic hydrocarbon/ Alcohol blends: 30 – 50°C (86 – 122°F)
Solvent free epoxy coatings :40 – 60°C (104 – 140°F)
Sales Specifications
Particle size distribution:(Malvern Mastersizer S laser particle size analyser) (CR 005)
| DV.2 min. | 4 μm |
| DV.8 max. | 20 μm |
| Capillary Melting Point (CR 003) | 130-140°C(266-284°F) |
Storage and Handling
Follow procedures typically recommended for polymer dispersions. 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 4 years from production date.
