View Full Version : preferred blast cabinet media?
10-29-2006, 09:32 AM
got a blast cabinet, what's the general consensus on the media I should use? They've got Garnet, 80 grit at the local store, but are out of the Alum. Oxide. and glass bead.
It'll be used for preping prior to parking.
10-29-2006, 11:43 AM
dont use glass bead! must use some sort of sand to tear up the surface a bit or the phosphate, paint, primer, what ever wont grip as well. 80 or 90 gt.
10-29-2006, 04:06 PM
AlOx is about the best, it cuts good, lasts a long time if you keep it clean and is not expensive. you can always mix in some glass beads, about 25% to give a smoother finish. On OOW receivers you really need the alox cutting power around the pin hole area.
for more information read this: http://projectguns.com/parkerizing.html
Red Jacket Firearms
10-29-2006, 08:45 PM
wait on the aluminum .
10-29-2006, 09:07 PM
Don't know what shipping would cost from Ca.
Don't have a local HF store do you ?
10-29-2006, 09:33 PM
I was by there last week, but thought it was kind of expensive at a buck a pound. The TSC store had it for $.50/lb., but were out.
I may check around, it shouldn't be that expensive.
10-30-2006, 12:49 AM
Hey go here and get it from this guy. I ordered it in 50 # but he has 25 right now. Great stuff!
Welcome to gunco!
ps Get 60 Grit...
Few items I painted after blasting...
The bird barrel is mine so I didnt care about getting a little paint in the bore. It came right out.
11-06-2006, 01:09 AM
Aluminum Oxide is your best choice. Remember to degrease really good first otherwise you contaminate the media as well as pound oil/grease into any nooks and crannies.
11-16-2006, 06:43 AM
Is Black Beauty 20/40 to coarse? It is a medium grit..
11-16-2006, 09:24 AM
soiunds pretty coarse to me, I ended up getting some at TSC. 50 lb. tub of Alum 80-90 grit for $25 Haven't tried it yet.
11-16-2006, 10:05 AM
Aluminum oxide works great but it's tough on nozzles.
The ceramic nozzles are OK but if your blast cabinet uses steel nozzles like mine does, plan on buying several spares.
The nozzles are cheap (IIRC @ $7 for a pack of three) but you will only get about an hour of blast time before you will need to replace it.
I've been using the 70 grit from Harbor Freight and I'am
quite satisfied with the results. I would buy extra porcelin