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Polyamide rheology additives CRAYVALLAC MT

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.

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