Oil painters are increasingly invested in the craftsmanship of their artwork. An accomplished and experienced oil painter recently asked us about Gamblin Ground, and why they would use it instead of or in addition to regular gesso. Creating a strong foundation for imagery is an important consideration, and Gamblin Oil Painting Ground creates the perfect foundation for contemporary oil painters. Below are notes on the key characteristics of Gamblin Ground, application tips, and notes about shelf life.
Gamblin Oil Painting Ground makes a strong, bright, non-absorbent foundation for oil paintings. Gamblin Ground is formulated from alkyd resin, titanium dioxide, and calcium carbonate – titanium dioxide gives opacity, while calcium carbonate gives tooth for strong adhesion.
Gamblin Ground makes a brighter and less-absorbent ground layer compared to acrylic “gesso” – meaning that oil paint layers on top retain better color saturation. Gamblin Ground can be applied to a “pre-primed” acrylic gesso canvas or panel to make a good painting support a great one.
Not every day is Christmas…
We all have a collection of less-than-successful paintings that shouldn’t see the light of day. Since Gamblin Ground is oil-based, it can be used to cover old paintings so the support can be re-used. We recommend roughing up the old painting with sandpaper or steel wool, followed by wiping the surface with a rag wet with Gamsol before the Ground is applied. This will ensure proper adhesion.
Because the percentage of pigments is so much higher than in acrylic “gesso”, painters need only apply TWO thin coats of Gamblin Ground instead of the recommended four coats of acrylic. Fabric supports should be sized with PVA Size before applying Gamblin Ground.
Gamblin Ground is thicker than acrylic gesso, and requires different application techniques, which are demonstrated on Gamblin’s Video Demos page.
Shelf Life, Formulation Improvements.
We have heard from painters who’ve experienced Gamblin Ground skinning over in the can, and Gamblin has taken steps to mitigate this by managing formula solvent levels and drying rate. They have also improved the Ground by lowering its odor. Ongoing tests show that formula adjustments over the past two years have resulted in reduced skinning and improved shelf life.
Still, Oil Painting Ground is formulated to dry faster than oil colors, and it doesn’t discriminate between drying on a canvas and in the can. Gamblin date stamps the bottom of each can. Painters, please remove the wax paper seal after the first use, drizzle a little Gamsol on the surface of the Ground and cover with a plastic seal (i.e. Ziplock baggie cut to fit). This will help prevent skinning in the can by limiting the Ground’s contact with oxygen.