UMA Advanced Technology Primer / Sealer / Bonder Primer is a fast drying, water-based bonding agent that has both primer and adhesive-like properties. It provides excellent adhesion to hard-to-paint surfaces even in high humidity conditions. Advanced Technology UMA Brand will form a hard film when fully cured. UMA Brand can be used for indoor and outdoor applications and can be topcoated with latex, oil-based alkyds, lacquers, epoxies and urethanes.