What Is Sanding Sealer. Sanding sealer is basically lacquer, but it contains zinc stearate, which is a soapy substance that makes the sealer easier to sand. As for a sanding sealer, i usually just use shellac. Not sure of what you are trying to accomplish or what your melamine's substrate is, but i'd recommend not bothering looking for something called sanding sealer.
The stuff that makes it easy to sand is the same stuff that can weaken the bond of the finish to the surface.
Sanding sealer soaks into end grain. It's typically applied after any desired wood stain, but before any protective coatings or finishes. Typically a 1 lb cut. There are two ways to do this. Sanding sealer synonyms, sanding sealer pronunciation, sanding sealer translation, english dictionary definition of sanding sealer. Sanding sealer is lacquer, or some other basic coating, with zinc stearate added. If you use a sanding sealer before you stain, then there isn't any wood fibers for the after the sanding sealer dries, apply a primer and let dry (refer to instructions on appropriate drying time what exactly is concrete sealer? It works much like shellac.