This listing is for a 10 pound box of BAKING SODA BLASTING CRYSTALS: Maintenance XL Soda Blast Media is our most aggressive soda for paint removal Environmentally friendly Soda Blast Media is specially formulated to strip paint without using chemicals, and without damaging metal. Maintenance XL is made with the largest crystal, to be our most aggressive, yet safe-for-metal, media for most paint-removal applications.