Sandblasting / Abrasive Media Blasting
Sandblasting a generic term for the process of smoothing, shaping and cleaning a hard surface by forcing solid particles across that surface at high speeds; the effect is similar to that of using sandpaper, but provides a more even finish with no problems at corners or crannies.
For harder coating removal, we use alternate media such as crushed glass, coal slag shown in the picture below, steel grit, and others. We do not use sand in our process as it is a very harmful media to blast with.
Soda Blasting/ Non abrasive media blasting
Soda Blasting is the process of propelling baking soda (sodium bicarbonate) through compressed air and special blast equipment to blast clean numerous substrates. The process is very similar to sand blasting with being less destructive to the underlying surface.
On MOH’s hardness scale 1-10, diamond being the hardest substance, Baking soda is 2.8 on the scale. This less destructive media is the most practical solution for sensitive substrates such as sheet metal found on cars, fiberglass (boat bottoms), and brick for restoration and graffiti removal. Soda blasting will not deface brick or affect mortar like other abrasive media.
Soda blasting is the preferred choice for the smoke & fire restoration industry. Because of its odor neutralizing properties, it eliminated all smoke smell associated with a smoke & fire damaged property. Since baking soda is considered a non destructive media, it will clean smoke, soot, and char from all framing members from a building without removing any wood. It will not comprise the structural integrity of any building.
The sodium bicarbonates particles are sharp and angular particles that gives it ability to cut. Baking soda is friable meaning, it literally explodes on impact causing the cutting action, yet without damaging the underlying substrate. This media is considered "non abrasive" because it does not harm the underlying substrate.
210 CFM Sullivan Palatek | 3.5 CU. Schmidt PMB Blast pot
Blasting a pool with Coat Slag