Boric Acid - 150 gr

Prepare metal for soldering, help remove firescale, degrease metal surfaces or perform final cleaning of your workpiece for a matte finish with this fine natural abrasive powder (320-grit). Mix with water to create a slurry. • Apply with a hand brush or rub directly onto the surface. • Can be used during mass-media finishing as an abrasive additive. • Rinses clean with water; non-toxic and biodegradable.