Step 6 of the process
Color and sealing
Once the burn is done, leftover pattern lines are erased or lightly sanded, color goes on if the design calls for it, and a finish protects the wood. The finish depends on use: wall art, kitchenware or outdoors.
- Clean-up
- eraser, then 220 to 320 grit, lightly
- Least color change
- acrylic or water-based clear coat
First clean up. Rub out leftover graphite with a soft eraser, then go over the surface very lightly with 220 to 320 grit paper to lift any haze around the lines. Be gentle: pale shading sits right at the surface and sands away easily. Wipe off the dust. Stain and paint come after the burn, never before, for the reasons given in burn or stain first.
Color is optional. Colored pencil, watercolor and acrylic paint are all used over a finished burn. Try them first on the scrap you used for the heat test: a surface sanded very fine takes less color than a slightly coarser one, and anything water-based raises the grain. Keep the color thin so the burned lines stay visible, and let it dry fully before any finish goes on.
Then seal. A clear coat keeps dirt and moisture out and slows fading. Light burns fade in sunlight more than dark ones, so a piece for a bright wall or outdoors needs a finish with UV protection. Oil-based finishes darken the wood and reduce contrast, while acrylic and water-based ones change the color least. Cutting boards and spoons get food-grade mineral oil. How to seal pyrography matches the finish to the project.
Ready to move on when: No pattern lines show, the surface is free of dust, and the finish has dried for the time on its label.
Common mistakes at this stage
- Sanding hard after burning and taking the light shading off with the graphite.
- Putting an oil-based finish on a pale, lightly shaded piece and losing the contrast.
- Hanging an unsealed piece in direct sun.