Sandblast Abrasive

[jec]

Anyone have a recommendation for the best material to use on a frame and underside of my cab. I ordered a pressure type blaster, yesterday, and will be using 3/32" or 1/8" nozzles.

I would like to buy in bulk (not 60lb bags) from my local sand & gravel supplier. In the past, I have used "white sand" purchase at the lumber store in 80lb bags. I am wondering about using "mason's sand" or something similiar.

I do not plan on spending alot of time recovering what is used due to the need to sift, etc. This is a large project and I will be working outdoors.