deepfriedbrain its not put in a sand blaster. the grit or sylacone is blasted on to the plant and bud's during and all the way through flowering. its propper nasty stuff as well it can make your lungs bleed cause. cause lung cancer. and all the other affects are still to be found out. if i was any one out there and i was offered this grit shit i would refuse to take it simple as whats more important your life or your weed i no what i would choose. ne ways ppl peace and god bless!!