Can I use it on vynal wall paper if I kilz it first

We recommend thoroughly clean the surface and allow to dry. Remove wallpaper and loose, peeling paint. Remove gloss from shiny surfaces. Patch cracks and spot prime. Valspar Signature paint can be used to prime patched areas and bare surfaces before applying the finish coat. For best results on heavily stained areas, drastic color changes or deep, vivid colors, prime with Valspar Interior Multi-Purpose PrimerSealer for optimal color accuracy and coverage.