It is usually a non-toxic natural substance called Garnet that is crushed to a fine powder. It is mixed into the high pressure stream and does the erosive work of cutting the material. Spent garnet is safely disposed of in a landfill.
What is abrasive?/wp-content/uploads/2022/03/ast-home-logo-metal-fabricating.pngAST Metal Fabricating/wp-content/uploads/2022/03/ast-home-logo-metal-fabricating.png200px200px