Our VESTAGON® B grades are blocked by using an external blocking agent. During synthesis, the reactive group is rendered inert through the formation of a relatively weak urea bond. This bond can be cleaved upon heating starting at 170°C by forming ε-caprolactam.
From linear to highly branched, Evonik provides a full range of externally blocked crosslinkers to allow formulators to meet various demands of end customers.
- High crosslink density
- High glass transition temperature
- Excellent antigraffiti properties
- Excellent durability
- Good levelling
- Automotive Coatings
- Coatings for Decorative Metal Surfaces
- Antigraffiti Coatings
- Household Appliances
- Metal Rim Coatings
Crosslinkers for the formulation PUR powder coatings.
Comprising a blocked caprolactam cycloaliphatic polyisocyanate adduct with a deblocking temperature of 160°C. Provides good chemical resistance and weatherability.
Comprising a blocked caprolactam cycloaliphatic polyisocyanate adduct with a deblocking temperature of 160°C. Provides enhanced chemical resistance and excellent weatherability.
Please note that products may not be available in every country. Consult with your area sales manager for further information.