HV'Art Advanced Gesso Style Factory Primer GSFHV'ART Advanced Gesso Factory Primer (GSF) is a sprayable, high opacity, and flexible primer for new furniture, joinery, and woodwork. It promotes adhesion, builds body, and powders down, providing an excellent base. Available in pure white or any custom colour, it's especially useful under HV'ART's decorative paints and plasters for achieving richer, more nuanced finishes. Advantages Opaque, water based interior primer Dries to a hard, ultra smooth