Media blaster nozzle size

[dankeenan]

I read a thread on this site about how great the black magic abrasive media is compared to sand. I purchased 2 bags from TSC and tired it out last night. It only works for about 5 seconds before it plugs the nozzle ( I put the biggest nozzle I have in 9/64), what size nozzle do I need to use?

 

[padronanniversary]

Mine did the same thing. Then I moved to the finer grit stuff, and no issues

 

[dankeenan]

This is the media I have, they have it listed as:

Type: 20 40 Grit
Size: 50
For Use With: 90 lbs Gravity Feed Abrasive Blaster

Where can I get the finer grit size?



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[dankeenan]

I spoke with ATI - black diamond on the phone and they indicated I should be using a 1/4" nozzle (seems really big to me). He indicated that the bags from TSC and Northern Tool are a mix of the little fury (fine 30-60) and shock rock (extra fine 40-80). I will buy a nozzle tonight on the way home and give it a try.