Why white fused alumina F012 F016 blasting media don’t make steel black?

Choosing the wrong blasting media always causes uneven surface or black surfaces when sandblasting acrylic, plastic, and aluminum products. However, white fused alumina F012 and F016 will not blacken or contaminate the objects that need to be treated.

White fused alumina F012 F016 sandblasting media will not produce black residue, mainly due to the pollution-free nature of white fused alumina.

Firstly, the chemical composition of white aluminum oxide is relatively single, with over 99% of its chemical composition being aluminum oxide with few impurities.

Secondly, the production process of white fused alumina using ceramic ball milling can avoid the residue of Fe2O3. After magnetic separation, the magnetic content is lower. Other sandblasting materials, such as natural abrasives garnet and quartz sand, are themselves natural minerals.  And other accompanying components are inevitable. Artificial abrasives such as glass beads and ceramic sand, although artificially synthesized, have diverse chemical compositions and metal residues. The Ferro element in the abrasive will react with air and be oxidized, forming small black residues that affect the surface effect after sandblasting.

Finally, white fused alumina has good self-sharpness and is less prone to generating heat during sandblasting, making it less prone to oxidation and blackening caused by etching for the workpiece.