Innovative Polyamide Technology Delivering Long Overcoat Window

摘要

Growth in the global coating's market and economies coupled with ongoing VOC requirements continue to bring challenges in high performance protective coatings. Conventional high solid polyamide technology for two pack epoxies, provides outstanding performance and has become the industry standard for application in this sector. However, a major limitation to date is their limited re-coat window after applying the initial coating; this window or the time within which a second coating can be applied to result in good adhesion, has become of mounting importance. Increased geographical separation of the coating and fabrication processes has resulted in a requirement for protective primers with 3 to 6 months re-coat window. Conventional high solids epoxies have only a limited re-coatability, leading to higher cost for surface pre-treatment and extended down times, prior to application of subsequent coats. The innovative polyamide technology presented here offers significantly increased performance to negate this issue, delivering higher performance value to both the formulator and end applicator.