a friend of mine is a sandblaster for a business, he uses all kinds of different stuff. I think walnuts are one of the least damaging mediums for blasting. I could ask him for more info on it.
a friend of mine is a sandblaster for a business, he uses all kinds of different stuff. I think walnuts are one of the least damaging mediums for blasting. I could ask him for more info on it.
Thats my understanding too....less heat buildup, so less warpage on sheet metal
Where I used to work, we used a plastic media...took paint off nice, but wouldnt get right into the rust
sand - breaks down, lots of dust, coarse finish on parts
crushed glass - pretty much the same results
glass beads - breaks down, dusty, fine finish on parts - not great at rust removal
Then I found a product called "Powerblast XC" from Opta Minerals. It is a very hard compound so it doesn't break down and create as much dust (HUGE difference compared to sand or glass!!). It lasts a long time - again because its so hard. It removes anything - paint, rust, etc.. It leaves a very fine finish to parts without removing any original features.
A few more bucks than sand, etc. but in a blast cabinet it will pay for itself by not needing replacement.
Many places sell Opta Minerals but you may not find this stuff on the shelf at places like Princess or TSC - most likely you'll have to go to a blasting supplier. I went to the plant in Brantford.
