Create a barrier between wood and lacquer ColorTone Vinyl Sealer locks in stain and grain filler, creating a clear barrier so successive topcoats won't melt into the material below. Specially formulated for stringed instruments, sealer can be applied over raw, stained, and grain-filled wood. ColorTone Vinyl Sealer is ready to spray with no thinning required. Apply in layers to create a level build that dries clear—an excellent foundation for ColorTone Nitrocellulose Guitar Lacquer (sold separately). Lacquer products are flammable! They cannot be shipped outside the USA nor shipped by air within the USA. Nitrocellulose lacquer products should not be used with acrylic lacquers.