From the manufacturer:
Durable, clear coating that seals prints! Also works with paint, lacquer and varnish. This package contains one 12oz spray can of clear acrylic aerosol sealer. Comes in a variety of textures. Each sold separately. DANGER: Flammable. Vapor Harmful. Skin Irritant. Eye Irritant. Conforms to ASTM D 4236. Made in USA.