Heavy 20 and Light 10 B72 Retouching Gels can provide the same results as those achieved by the artist using megilp. They allow the application of fluid, semitransparent, textured brushstrokes so common on old master landscape paintings.
Heavy 20 and Light 10 B72 Retouching Gels, having a false body made mainly of solvent, are identical in their physical and handling properties to the traditional megilp. They become fluid under the stress of mixing and when applied with a brush. When left undisturbed they gel again after a while. B72 Retouching Gels allow transparent and semitransparent, slightly textured brushstrokes to be painted wet-in-wet without the risk of paint flooding and bleeding.