Recorded on October 23, 2019
Presented by Evonik
“Wet-on-Wet epoxy coating” refers to a method of applying an epoxy coating where additional coats are applied before the previous coats have cured. Epoxy systems can be used as primer or as an intermediate coat. The functional primer coat provides corrosion and barrier protection to the steel and facilitates the intercoat adhesion of subsequent intermediate coat.
It is essential that epoxy primer develop its functional properties:
- Hardness
- Cross link density
- Glass transition temperature (Tg)
- Provide sufficient recoat window for the intermediate layer
Learn more about Evonik’s new curing agent for Wet-on-Wet systems and recent trends and drivers in epoxy coatings market suggests that innovation of epoxy curing agents is needed to significantly lower the cure time thus enhancing the productivity and throughput in both factory and field applied epoxy systems.
In this presentation we demonstrate the performance attributes of a novel polycyclic-aliphatic amine modified curing agents which can provide rapid through cure and enables wet-on-wet epoxy applications. Glass transition (Tg), IR cure profile, intercoat adhesion, corrosion resistance, and applications data will be discussed.
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