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We read about media blasting..

anyone have any results from coal blasting "black diamond"

I've tried a bit.. had to sift the media before use..

Tim

MNAirHead wrote:We read about media blasting..

anyone have any results from coal blasting "black diamond"

I've tried a bit.. had to sift the media before use..

Tim

I found an article a few years ago that talked about using baking soda for sandblasting small rust repair jobs. It works very well. It doesn't hurt rubber or glass. It works good on intakes and other engine parts as well.

Would you like to use tabe salt or would that make it rust, Black Diamond is a brand Name. It could be some type of beach sand from volcano rock from fugee.

There is a media blasting grit on the market called "Black Beauty" along with a couple other with the word "Black" in the name.
The material is actually coal slag from a blast furnace. It is very coarse but takes material off very quick.
Jerry...

Have been using it.. wanted to ensure that it won't create issues.

Thanks.

Hey there,

Here is the link for the MSDS on this stuff. It is sold under a few names. I use it all the time, and after reading more up on it I am happy I no longer use sands, especially silica!

I am also happy to report that the mineral that occurs in it does not mess with the signal to your heart as it was rumoured. It's the stuff you are blasting off that would cause more harm to you if you weren't wearing proper filtration. I do it in a cabinet.

http://www.optaminerals.com/sandblaster ... kBlast.PDF


http://www.optaminerals.com/sandblaster ... l_slag.htm



Hope this gives a little more light to the thread.

'bugss

Dennis ...

This is the stuff that I'm shooting.. only note is that I have to sift it before use.

tim

I have used it for special Boeing jobs... I prefer 80-300 grit garnet. When you spend all day blasting like I do you want something the is 1, reuseable and 2, works well and fast. I here a lot about people saying use only plastic... Those are the people who haven't spent hours blasting something that would take 10 minutes to blast with garnet. Then again, its all about what type of profile you are looking for, etc... But hey, I only have like 2000 hours of blasting experiance.

What type of a blaster are you using Tim? I guess I should be asking what type or size of nozzle are you shooting with?

I ask because I have never sifted this stuff prior to use. I do get clogs in the cabinet blaster, but that ends up being loose paint or rust chips I have knocked off.

Yeah, I really like using the stuff.

I've used siphon.. the pressure pots you name it.

I do get arbitrary big pieces in the blaster.

Is garnet better than coal?

Black Beauty is reported to make for an awesome sharkskin texture on intake ports.... (Wrong forum, I know)

Yes it does.. I wire brush them.. almost makes them polished.