I've gotten my media from T.I.P. sandblasters in Canfield,Ohio when we where at the Stark family fairgrounds working as a vendor at the swap meets.They are across the street from the fair grounds.
T.I.P. specializes in blasting and is very helpful and knowledgeable in their field.Tell them what you want and they can tell you how to get there.
TP Tools & Equipment
Shine from another forum who for a long time has been a blaster stated there are three primary things needed for good blasting.Volume of air,not pressure,correct media,and knowledge of metals to adjust distance.He uses a used construction diesel compressor for the volume of air.The type used for jack hammers.I want to add safety and knowledge of media.To breath in some medias is harmful and you need to wear a air supplied mask.
Contact T.I.P. from the link