Dry ice blasting? | GTAMotorcycle.com

Dry ice blasting?

Relax

Relax

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Does anyone here do dry ice blasting? From what I've seen, it's non-abrasive and gentle enough to use on plastic parts, but still able to remove rust off a frame. I'm mostly interested in getting the undercarriage of my cars done prior to rustproofing, but also my Hawk motor if I don't need to remove it from the frame.
 
Cool. But the write up says “safe for the environment” except for the part that you’re releasing a reasonable amount of greenhouse gas.
 
jc100 said:
Cool. But the write up says “safe for the environment” except for the part that you’re releasing a reasonable amount of greenhouse gas.
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True that but the CO2 was collected as a byproduct of a industrial process.
Translated they are saying that it would be released into the atmosphere regardless.
 
jc100 said:
Cool. But the write up says “safe for the environment” except for the part that you’re releasing a reasonable amount of greenhouse gas.
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Nope. It’s a catch and release game, it’s net zero on CO2, just like making regular ice is net zero on H2O.
 
Relax said:
but also my Hawk motor if I don't need to remove it from the frame
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NEVER media blast anything that isn't going to be meticulously cleaned afterward. The CO2 is clean, but the stuff you just blasted OFF the motor is not. If you blast an intact motor you're blowing dirt INTO the crevices... and you'll also knock off the layer of oxidization that coats the bare aluminum, causing unsightly, spotty oxidization
 
I considered rigging up a CO2 setup... but the cleanup afterward isn't worth the effort when there is a guy in Oshawa that will do a set of cases for $75
Soda? same deal... WHAT A MESS
 
Blasting is a bit art, a bit science.

I do my own, recycled glass is my preferred medium. Any Neanderthal can do outsides of castings and stee above 16 gauge using a small compressor and sand pot.

Body metal gets tougher. Heat warping and thinning is an issue that needs finesse in 18 gauge and higher. If you’re unsure - you can’t do it. Call a guy






castings of any type with zero skill.
 
I use a small compressor, a small spot gun from PA and sifted beach sand to do small cast iron parts. It makes a mess not having a booth or cabinet. Lung, eye and skin protection definitely needed.

For larger item it would be a PITA. I'd guess at least an hour per square foot, What's your time worth?
 
nobbie48 said:
I use a small compressor, a small spot gun from PA and sifted beach sand to do small cast iron parts. It makes a mess not having a booth or cabinet. Lung, eye and skin protection definitely needed.

For larger item it would be a PITA. I'd guess at least an hour per square foot, What's your time worth?
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For big sandblasting jobs a friend of a friend has a monster built in an old school bus. Giant diesel powered air compressor. Gets the job done quickly. I also have the tiny spot gun as it was cheap.
 
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