CRAYVALLAC ULTRA

Product Details

CRAYVALLAC® ULTRA is a new high performance micronised amide wax rheology modifier offering very good recoatability for ambient curing solvent-based epoxy coatings.

CRAYVALLAC® ULTRA has been designed to overcome those difficulties which exist with older type organo-wax rheology modifiers e.g. seeding, false-body and migration of readily dissolved species to the surface. Consequently, when used in strong solvent systems, coatings formulated using CRAYVALLAC® ULTRA offer an enhanced performance and very good recoatability.

The use of high-speed dispersers is ideal for the incorporation and activation of CRAYVALLAC® ULTRA in that they develop both the necessary level of shear and temperature.

CRAYVALLAC® ULTRA is best added along with the initial charge of resin during the pigment dispersion and grind stage. Efficient activation will be achieved by allowing the temperature during dispersion to rise to 45 - 65°C (113 - 149°F), but more preferably from 55 - 65°C (131 -149°F), and maintaining this condition of dispersion and temperature for 20 - 30 minutes.

Benefits

• 100% Active
• Imparts shear thinning rheology with thixotropic viscosity recovery
• Very good recoatability
• Excellent sag resistance
• Very good anti-settling properties
• Good storage stability