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Author Topic: Sandblasting media  (Read 2345 times)

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Dakotagrafx

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Re: Sandblasting media
« Reply #15 on: January 12, 2012, 07:41:21 AM »
Quote from: Thors_Foundry on January 12, 2012, 04:45:51 AM
Hmmm the BD that I've used was like 120 grit..and that at like 30 psi thru an 1/8" "nozzle"  Used one of them Spot Blaster type guns (Speedblaster - I think they're called?)  Oracal 651 will mask it - no where near as nice as the AO but use it for large portions and ya can kinda fade in the other detail..


and Thanks Peabody for saving me a shit-ton of cash on sourcing abrasive!  I have looked and asked at TSC, but no one there "knows" what they even sell. ya have to find stuff yourself -  I asked for "blast media" and one guy thought I meant powdered explosive ;D
  maybe they just know you better than you thought Jeff   LOL 
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Freebird1963

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Re: Sandblasting media
« Reply #16 on: January 12, 2012, 01:25:02 PM »
On line at TSC a search for black diamond or blasting media only brings up this black diamond stuff.

http://www.tractorsupply.com/black-diamond-20-40-blasting-media-50-lb--3905403

Title says 20-40 the description says 80-90lb density.

So is the right stuff cuz its a lot cheaper than the AO.

Thanks
Mark
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kyjeeper

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Re: Sandblasting media
« Reply #17 on: January 12, 2012, 05:16:04 PM »
I get the 40/80 grit Black diamond at TSC. Our TSC here carries 3 grades of it, but that seems to vary by store. 

Also as far as blasting the resist off, make sure you're not holding the nozzle directly against the surface, and also that you've applied it correctly. If the surface isn't clean, or greasy in any way, the vinyl won't hold at all. I prep and apply just like I would when applying a decal to something.
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Mr Peabody

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Re: Sandblasting media
« Reply #18 on: January 12, 2012, 05:18:43 PM »
Quote
ff yourself -  I asked for "blast media" and one guy thought I meant powdered explosive
:D  ;D
So, did you get some of the explosive kind?  :D

I've had the same kind of experience there. Their head turns to the side, their eyes kind of roll around in different directions. You should have seem em when I asked for SiC. "huh? what's that?" :rolly:

You should see the help @ harbor freight around here. I don't go there unless I know exactly what I need. They're always running some where.  :D At least at TS they shower before going to work....


I run the 80-90 A0 through the 1/8" nozzle, although it's more like 220 now. Need to empty it out and refill the cabinet. Save it for when I attempt rapid mask and half tones.
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Freebird1963

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Re: Sandblasting media
« Reply #19 on: January 13, 2012, 02:28:05 PM »
I went back to TSC and found more bags. They were checked marked as 40/80 50lbs. I picked one up and poured it into the blaster cabinet.
Should the whole bag go in or 1/2 or what amount.

Now is blasting material that is AO 80 gonna give same results or close to results as BD 80 ?

Thanks.
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Thors_Foundry

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Re: Sandblasting media
« Reply #20 on: January 15, 2012, 01:16:10 PM »
Quote from: Dakotagrafx on January 12, 2012, 07:41:21 AM
  maybe they just know you better than you thought Jeff   LOL 

They apparently know me better than even I know me, then...
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Freebird1963

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Re: Sandblasting media
« Reply #21 on: January 25, 2012, 10:20:52 PM »
Well had a stupid stupid major brain fart. Wanted to blast a design I had and was excited and got in a hurry.   Thought I had half a bag left of the Black Diamond stuff and went to add it in and low and behold it wasn't blasting stuff. It was my bag of @#$#!@  grout. %$@%@.
No way to sift it. I figured I just blast thru it. Forget that. The dust is so bad can't see crap. @#$!#@$!@#$.
So I have to get new stuff so wanna ask those that have used the AO and BD stuff. Tho they are both 80 grit is it still the same etching look/feel etc ?


The local TSC here only seems to carries the AO 80 and if they are the same rather get the less expensive stuff and get 2 bags so I don't brain fart again. @#$@%#$.
Thanks
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midwaste

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Re: Sandblasting media
« Reply #22 on: January 25, 2012, 11:25:12 PM »
Not sure about the texture differences, but from what I have read and heard, BD is more long-lasting/reuseable.  This has something to do with the way the particles fracture when it blasts.
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kyjeeper

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Re: Sandblasting media
« Reply #23 on: January 26, 2012, 08:56:08 AM »
I've been using the same bag of BD for 6 months, and its just now showing its wear (looking more like fine sand than blasting grit now). It still cuts just like it did new though.
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