Product Directional Application:
Polish- these products contain abrasives and should be applied in straight-line motions (Forget what Mr. Miyagi was teaching the Karate Kid) circular motions will cause circular directional marks (swirl marks)
Sealant, Glaze or Wax- these products are all non-abrasive so direction of application won’t cause directional marks to the surface.
Optimising light refraction - apply product in ‘direction of airflow’, horizontal surfaces hood to trunk, vertical surfaces front to back. This application technique affects the paints optical properties by optimising the surface light refraction and the reflectivity of the bodylines and contours of the vehicle
JonM