5 pounds of #61 Rapid Polish (a sub micron aluminum oxide polish). This kit incorporates 5x as much grit and polish because the standard kit for about three.3x the cost. More Information. Warning: Will not eliminate used grit, polish or rock slurry down a drain. Armadura: SiC is used to https://aboutmacrocosmmaterial47924.wikipublicist.com/4664808/tensile_strength_for_silicon_carbide_mpa_no_further_a_mystery