This report summarizes optimization work for surface preparations and hybrid primers utilizing sol-gel technology on metal alloy substrates. The project focuses on the development and optimization of user-friendly sol-gel methods for preparing metal surfaces for bonding with 250 degrees F-cure and 350 degrees F-cure epoxy adhesives. Several improvements to the Boegel-EPII materials and processes were identified in this work. For example, addition of a surfactant can improve the appearance and ...
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