An Out of this World Product, Really*

Yet, now produced in house, at Harbor Seal

*Silicon Carbide is not a naturally occurring substance on earth. It has been found only around meteor craters, principally the one outside of Flagstaff Arizona. Thus, it is an outer terrestrial immigrant.

A scientist, who had worked for Alexander Graham Bell, in an experiment, combined silica sand and coal and passed a strong electric current through it. From this grew crystals of heretofore never encountered hardness. It could scratch everything, but only diamonds could scratch it. From this discovery was born the Carborundum Company.

Although Silicon Carbide feels light and looks fragile

• It is extremely tough, CHEMICALLY
  • There are only a few substances that can attack it.
  • It does NOT leach-(like Tungsten does) because there are neither Cobalt nor Nickel binders to be attcked and chemically removed.
• It is tough, THERMALLY
  • It does Not shock under extreme temperatures, hot or cold
  • It does Not crack, or heat check
• It is extremely tough, MECHANICALLY
  • It's abrasion resistance is next to that of a Diamond
  • It's excellent in abrasive enviroments

(yes, when hit with a srew driver or by a hammer, it can chip or shatter, but so will Tungsten Carbide, even though it "looks tough")

• It is extremely LUBRICIOUS
  • Yes,thats right, "lubricious",which means a very low coefficient of friction and thus API's highest PV rating of 500,000
  • It runs cool-which in sealing terms means L-o-n-g Life
  • It runs extremely well against itself
  • At a PV rating of 500,000, shiny or matte, makes no difference
  • Even running dry - a few particles of free Silicon provide the lubrication for trouble free operation.
• It is readily available and less expensive than Tungsten