sand blaster

[Donovan M.]

here is my new toyhttp://www.onlycubcadets.net/forum/a...1&d=1320175013

[CADplans]

Let the warping begin!!

I worked at a shop where the manager insisted we try sandblasting to de-burr sheetmetal parts we were making.

The sandblasting acted like hammering the material on one side - stretching it permanently.

This cased all types of warping and distortion.

Many people sandblast sheetmetal, but, I am very cautious of thin parts!

[ACecil]

Congrats on your new toy, Donovan!

[Donovan M.]

i agree on the thin parts. if i do my 100's hood i will be careful on it.and thanks guys.

[green 4 acres]

I use mine with nut shells fragments on sheet metal
won't even scratch aluminum

[Methos]

Originally Posted by CADplans

Let the warping begin!!

I worked at a shop where the manager insisted we try sandblasting to de-burr sheetmetal parts we were making.

The sandblasting acted like hammering the material on one side - stretching it permanently.

This cased all types of warping and distortion.

Many people sandblast sheetmetal, but, I am very cautious of thin parts!

Got to change media so it doesn't warp it.

Originally Posted by green 4 acres

I use mine with nut shells fragments on sheet metal
won't even scratch aluminum

Any other choices for media?

[Donovan M.]

i got some black dimond stuff from TSC

[thenrie]

Harbor Freight sells aluminum oxide in about 80 grit. Works great for removing rust and paint. I have also used soda, like baking soda, which you can also buy at HF in large bags. It is great for removing paint, but won't touch rust. Neither of these media will warp metal. Sand will peen the metal and cause too much heat. It will warp thin metal, but it's cheap and great for frames and metal parts. Both aluminum oxide and soda are expensive, so I only use them in a blasting cabinet, but they work like a charm. Not only that, but they both seem to leave a surface that resists rust. I never get flash rust when I blast with them.

Aluminum oxide is my preferred media. Strips paint and rust quickly, removes little metal, leaves a surface that resists flash rust and adheres paint well.

HF also sells the nut shells for blasting and vibrator polishers. Again, good for paint removal and polishing, but won't touch rust at all. In fact, nut shells will remove paint and leave bondo intact at the right pressures.

As a side benefit of the soda, you can also use it for electrolysis rust removal solution.

Make sure you use the proper protection, especially with regard to your lungs. None of this stuff is good for you, but the sand will really cause health problems down the road a few years. Silicosis, you know. Lung cancer. Those little dust masks don't make the cut.

[Methos]

Originally Posted by thenrie

Harbor Freight sells aluminum oxide in about 80 grit. Works great for removing rust and paint. I have also used soda, like baking soda, which you can also buy at HF in large bags. It is great for removing paint, but won't touch rust. Neither of these media will warp metal. Sand will peen the metal and cause too much heat. It will warp thin metal, but it's cheap and great for frames and metal parts. Both aluminum oxide and soda are expensive, so I only use them in a blasting cabinet, but they work like a charm. Not only that, but they both seem to leave a surface that resists rust. I never get flash rust when I blast with them.

Aluminum oxide is my preferred media. Strips paint and rust quickly, removes little metal, leaves a surface that resists flash rust and adheres paint well.

HF also sells the nut shells for blasting and vibrator polishers. Again, good for paint removal and polishing, but won't touch rust at all. In fact, nut shells will remove paint and leave bondo intact at the right pressures.

As a side benefit of the soda, you can also use it for electrolysis rust removal solution.

Make sure you use the proper protection, especially with regard to your lungs. None of this stuff is good for you, but the sand will really cause health problems down the road a few years. Silicosis, you know. Lung cancer. Those little dust masks don't make the cut.

Tony great info!

[CADplans]

If I could get Duke to bring me some NC pecans, I could run them with my parts in this!!


D7K_1059640x389-2.jpg

They would be nut shell fragments soon, and the nut oil would keep the parts from rusting!!