(Continue to shake regularly throughout the application process.3) Spray on to desired surface from a distance of 15-25cm. For best results apply in thin layers, leaving 15–20 minute intervals between each coat.4) Once dry, sand down for the best adhesion and allow 24 hours to fully harden.5) After use, invert can and spray for 2-5 seconds to prevent blockages forming in the nozzle.