Advantages and Performance of the Bristle Blaster® Technology. Removes corrosion, mill scale and protective coatings Surface cleanliness with Near White/White Metal appearance no grinding or polishing dduring operation; Creates a mil surface texture/anchor profile Benchmark steel is API 5L pipeline steel profile will vary with hardness of substrate.
The title is a bit misleading; it says "Make your own sand blaster, And how to use it" Clearly you did not make your sandblaster, it looks like it came from Harbour Freight. You used it, but not safely, and could possibly mislead others. Thanks to ironsmiter for the tip on baking soda, and ditto wasp's sentiments.