Gesso Resist Backgrounds Technique

What Is Gesso – and Why Use It?
On a mixed media piece where you might have plastic, wood and paper all on one surface, a coat of gesso “levels the playing field” so colour goes on evenly. In these techniques, that same property is used more creatively: gesso is applied unevenly so it will resist colour in interesting, patchy ways.

Technique 1: Mottled “Old Plaster” / Oxidised Background
This version gives a soft, chalky, slightly distressed look that works beautifully behind vintage images or metal-effect embellishments. Cut mixed media card into smaller panels (e.g. tag or card-front size). Dampen a kitchen sponge, then squeeze out most of the water. Pick up a small amount of white gesso. Dab it randomly over the card, some areas should have more gesso and some areas very little. Leave a few bare patches of card. The goal is a thin, uneven, slightly patchy coat – not a solid, painted layer. Allow to dry.

Decant a few drops of chosen inks (for example Dark Walnut, Buff, French Mustard and a touch of blue) onto a craft mat or palette. Add a tiny droplet of vegetable glycerin next to each colour. Glycerin increases viscosity and slows drying, so the inks can be blended smoothly like pad inks. Load a blending foam first with a little glycerin, then pick up ink. If the foam looks very wet or heavily loaded, blot lightly onto kitchen paper. Apply the pale neutral colours first in soft circles. Build up the darker colours in patches for age and depth. As the colour moves over the gessoed areas, some parts of the card absorb ink strongly while others resist, revealing a beautiful mottled, chalky pattern where the gesso sits underneath. This panel now looks like old plaster or oxidised paint  – ready to stamp over, die-cut, or turn into a tag.

Technique 2: Faux Wood Grain with Gesso
This technique builds a realistic wood effect by combining linear gesso streaks with layered inks. On a fresh panel of mixed media card, load a flat brush or sponge with a little gesso. Draw straight, parallel lines from top to bottom of the card. Use a light touch so the gesso forms streaks, not a solid block. Keep the motion vertical and consistent. Allow to dry.

Place Dark Walnut and French Mustard inks on the mat with a droplet of glycerin beside each. Load a blending tool with glycerin, then ink. Pull colour vertically, following the direction of the gesso lines. The bare card absorbs more ink and appears darker whilst the gessoed streaks resist slightly, creating lighter “grain” lines. To cool and deepen the tones, add a very small amount of charcoal black ink, again blending vertically. The background begins to resemble aged wood, complete with uneven streaks and variation in tone.

Technique 3: Woodland Stencil Glow
Here, gesso is stencilled first, then tinted with inks to create a glowing, forest-like effect. Place a woodland stencil over mixed media card. Using a sponge and white gesso, dab lightly through the stencil. Remove the stencil and allow to dry completely. The design is barely visible at this stage – just a subtle raised pattern in the light.

Choose a mix of greens, blues and browns, plus a warm yellow such as Marigold. Add a dot of glycerin for each colour on the mat. Load a blending tool with glycerin and green ink, then apply in soft, broken patches. Avoid covering the whole panel in one colour. Blend in blue ink in selected areas so it merges with the green. Keep darker tones towards the bottom and outer edges, suggesting shadow and depth, and leave the central area lighter for a “light through the trees” feel. Using a clean foam and glycerin, pick up the yellow ink and gently blend it into the centre of the scene for a soft light source. Because the stencil was done in gesso, the ink catches differently over the trees and background, revealing a subtle, textured woodland pattern with a glowing centre.

Gesso is no longer just a primer – it becomes an active, creative tool for building texture, pattern and vintage-style depth in all kinds of projects.