Get the Site Ready
Every mural project starts with preparing the space, not the wall itself. For an interior mural, that means clearing furniture and rugs from the room, taking down existing paintings, and taping off or masking any sharp edges or trim that need protecting. Drop cloths go down around the entire work area before a single can of paint is opened — a small amount of setup time here saves hours of cleanup later.
Choose the Right Mural Paint Medium
The type of paint used shapes both the working process and the finished mural's durability. Oil paint — pigment suspended in a drying oil like linseed, poppy seed, or walnut oil — offers rich color and a long working time, with the specific oil affecting drying time and sheen. Acrylic paint, a fast-drying pigment suspended in acrylic polymer emulsion, is water-soluble while wet but water-resistant once cured, and can be diluted or built up to resemble anything from a watercolor wash to a heavily textured oil painting. Aerosol spray paint offers a smooth, even coat that's hard to achieve with a brush or roller, along with a portability that makes it useful for large-scale outdoor work.
Prepare the Wall Surface
Rough or porous surfaces typically need a primer coat before any color goes down, and the wall itself should be clean and free of debris. For large-scale murals, reaching the full height of the wall safely is its own logistical challenge — aerial lifts (sometimes called cherry pickers or scissor lifts) and scaffolding are both common solutions, chosen based on the wall's height, the surrounding space, and how long the crew will need access.
Creating the Mural
The painting process itself starts with a sketch of the subject directly onto the wall, establishing composition and proportion before any color is applied. From there, the main object areas get blocked in with base color, followed by blended gradients that give the piece depth. Additional layers build up the detail areas, and final touches — fine linework, highlights, texture — are added last, once the underlying composition is fully resolved.
Final Touches and Protecting the Work
A finished mural still needs protection to hold up over time, especially outdoors. An oil- or water-based varnish, applied last with cross-hatched brush strokes starting from a corner, is the standard way to seal the surface against UV exposure, moisture, and everyday wear — the difference between a mural that fades within a couple of seasons and one that holds its color for years.
Why Technique Matters on a Commission
These fundamentals — surface prep, paint selection, safe access, layered painting, and proper sealing — are the difference between a mural that looks good on installation day and one that still looks good five years later. An experienced muralist plans for all of it before the first brushstroke, which is exactly what a client should expect from any commissioned mural project.
