Re: S330 or S280 shot blasting media

Dave Parker


Looks like steel shot, but there is this video on U-tube describing use in "wagons" (in a charming British accent):

Remember, as long as the cavity is big enough, there isn't any advantage to little tiny balls of steel.  Hexagonal closest pack orientation yields 74% balls and 26% glue/air, regardless of the diameter of the spheres.

That price would be more attractive if the product was tungsten, but I'm pretty sure if it was, they would say so.

Dave Parker
Riverside, CA

On Monday, June 5, 2017 2:19 PM, "'Bruce F. Smith' smithbf@... [STMFC]" wrote:


In thinking about weighting steam era freight cars, I came across “Liquid Gravity” in a story by Cody Grivno in this month’s Model Railroader, where he weights an old Ulrich Gondola.  The stuff looks like tiny steel shot… (I say steel because it is “non-toxic” so it isn’t lead)

It turns out that it sells for around $13 for 240 grams.

S330 or S280 steel shot blasting media sells for $36 for a 50# bag of S330 or $22 for a 25# bag of S280.  Shipping adds significantly to the bill, due to the weight, of course… but sheesh, that’s several lifetime supplies of beetle metal balls…

I think Tichy used something like this for the weights in their derrick kit.

This seems like a no-brainer - is anyone using this stuff?  Either as weight or to media blast?


Bruce F. Smith            
Auburn, AL
"Some days you are the bug, some days you are the windshield."

Join to automatically receive all group messages.