Jo Sonja's C;ear Glazing Medium Allows You To Control Paints Under A Variety Of Conditions!Glazing Medium is a transparent acrylic glazing medium that can be used alone or with acrylics. Mix with base color to seal as you basecoat or alone on raw wood as a light sealer. A coat of Glazing Medium is recommended prior to staining for an even application of stain. Works great for faux finishes and backgrounds.