The required dosage is about 150 g/m2, or 10 to 15 chips under the footprint of a shoe.
As for graveling or salting, spreading can be done either by hand (on the fly) or with a traditional spreader.
Unlike mineral chips, which must be discharged to bioactive landfills when the winter season is over, Stop Gliss Bio chips are naturally eliminated and can even be used for compost or energy production.