Seche Prep Nail Cleanser and Antiseptic. Seche Prep thoroughly removes all oils and residues prior to the application of the base coat. This stage in the manicure process is critical to achieve a strong foundation and bond between the base coat and the nail plate. An essential stage when using Seche Vite. Apply generously to the nail plate and wipe clean with a lint-free nail wipe before it evaporates.