This is the fun part, but it also requires speed and efficiency. When your base is dry, mentally divide your wall into small sections. The topcoat needs to be painted on while the glue is still tacky, so it helps if you apply the glue and the topcoat section by section, rather than tackling the entire wall in one go.
Start applying glue to the first section, using different amounts of glue with each stroke to create a combination of larger and smaller cracks across the wall. The thicker the layer of glue, the larger the cracks will appear, and a combination of the two is best for a truly authentic finish.
Then paint over it with your lighter-coloured topcoat. It’s important to work the paint over the glue just once, as multiple coats and retouching can ruin the crackle effect.
Repeat the gluing and painting steps across the entire wall, then all that’s left for you to do is to patiently watch the magic happen as the crackle paint effect gradually begins to appear.
To complement the rustic, weathered look, furnish the room with a few distressed furnishings such as a cabinet for the living room, or a wardrobe and side tables in your bedroom. Find out more about how to distress pieces of furniture. Alternatively, you might prefer to add modern furnishings for contrast.
If you’re looking for a little more inspiration when it comes to choosing the colours for your crackle paint project, check out our guide to picking your paint palette.