1. Touch up surface to be stencilled with desired colour. Allow to dry
2. Remove any dust from chalkboard
3. Tape down the stencil if windy
4. Use aerosol (or sponge and paint)
5. Hold can upright. Spray (or sponge) evenly and uniformly
6. Best results achieved by spraying more than once from further away than once, too near

The stencil used is laser cut from 350 micron (0.35mm) Polyester film. Tradenames: Mylar or Polymex.