Jet patching is carried out in four stages:
- High pressure air is used to remove all debris from the pothole
- the pothole is sealed with an asphalt emulsion to prevent water from entering the pavement subsurface
- the aggregate is mixed with an asphalt emulsion and sprayed into the pothole at high velocity
- finally a finer, dry aggregate is sprayed over the filled pothole to prevent the wet asphalt emulsion from adhereing to tyres until the patch has dried.