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Electrical · Miami, FL
Substation Equipment Ice Blasting
When people call about substation equipment, the constraint is usually the same. We clean it without water, without chemicals and without anything abrasive touching the surface.
What builds up, and why it matters
On this kind of work the problem is conductive dust, carbon tracking, oil mist and contamination on insulators and bus. This is the work that makes the low-moisture part of the process matter. You cannot wash a panel. You cannot blast grit into a motor. Dry ice leaves no standing water in a harness, a winding or a cabinet.
Equipment is de-energized and the area ventilated before anything starts. The people who call us about substation equipment are usually facility electricians and reliability engineers, and the thing they are actually worried about is a flashover, or moisture left where moisture should never be.
The method
Why dry ice and not the alternatives
- Non-abrasive
The pellet is soft and sublimates on impact, so the work is thermal rather than mechanical. Machined faces, plating, paint and gaskets survive it.
- Low moisture
No standing water in a harness, a bearing or a cabinet, and no dry time before the equipment goes back into service.
- No secondary waste
Sand, soda and walnut shell all have to be swept and hauled. Dry ice leaves only the contaminant it removed.
- Often no teardown
Much of this work is done in place, which is usually where the real saving is. The labor is in the disassembly, not the cleaning.
More electrical work
Related jobs we get called for
Questions we get asked first
Will it damage the surface underneath?
On most substrates, no. The pellet is soft and sublimates on impact, so it does thermal work rather than mechanical work. We still test an inconspicuous spot first on anything unusual.
Do you have to take the equipment apart for substation equipment?
Usually far less than you would expect, and often not at all. Cleaning in place is where most of the saving comes from, because the labor is normally in the teardown and reassembly.
How much mess does it make?
Far less than the alternatives, because the blasting media disappears. What is left is the contaminant itself, which we contain and clean up.
Do you come to us?
Yes. The whole rig is mobile. Compressor, hose and operator arrive at your shop, plant, driveway or dock, anywhere across South Florida from Miami out to roughly a hundred miles.
What does a job cost?
It depends on the equipment, the contaminant and the access, so we will not throw a number at you over the phone without understanding the work. Describe the job and we will give you a real figure.
How soon can you look at it?
Send photos and a short description and one of the owners gets back to you. If you have a shutdown or a deadline, say so up front and we will tell you honestly whether we can hit it.
The comparison
What the alternatives actually do
- Media blasting
Effective and indiscriminate. On soft metal or a finished surface it does damage you then have to fix.
- Pressure washing
It is fast and it is wet, which is fine outdoors and unusable on anything with a winding in it.
- Solvent and degreaser
It dissolves the deposit and often the finish underneath, then leaves a film behind either way.
- Hand scraping
Slow, inconsistent, and the tool marks the surface. Fine for a small area, unworkable across a machine.
- Dry ice
The deposit shrinks away from the surface it is stuck to and releases. The ice is gone before it can do any harm.
What comes off
What this takes off
The method does not care much what the contaminant is, only that it sits on top of something. Here is the usual list.
- Paint and coatings
Taken off in a controlled way when what is underneath matters more than speed.
- Salt and corrosion product
Salt deposit and the oxidation it starts. Anything abrasive removes the protection along with the salt.
- Ink and printing residue
Ink and coating on anilox and press rollers, surfaces where changing the texture changes the print.
- Food residue
Carbonized product build-up in a plant where neither standing water nor a chemical film is acceptable.
- Grease and oil
The greasy base coat that traps grit and dust. It releases early and takes the loose material with it.
- Carbon and soot
Baked carbon on a manifold, oven or weld fixture. Thermal shock is exactly the wrong thing for the bond holding it on, which is why this works.
- Adhesive and sealant
Whatever the last repair left stuck to the mating face: gasket, sealant, deadener or adhesive.
How a job runs
The sequence, start to finish
There is no mystery to how these jobs run, and no part of it we would rather you did not ask about.
- We blast, then clean up
The media disappears on contact; the contaminant does not. Gathering what came off is included, not a line added afterward.
- You look before we pack up
The job is not finished because we say so. It is finished when you have looked at it.
- You describe the job
We start with what it is and what is on it. Whether it can come offline matters as much as the contaminant, and a wrong-tool answer is one we give up front rather than after the invoice.
- We look at access and containment
Where the compressor sits, how far the hose has to reach, what gets masked or moved, and where the removed contaminant ends up. On food and electrical work this is most of the planning.
- We test a small area
Settings get proven somewhere nobody looks before they get used somewhere everybody does. What is correct on cast iron will mark aluminum, so the test is not a formality.
Before we turn the rig on
The media is solid CO2, nothing toxic and nothing left behind, but it pushes oxygen out of a closed room. Ventilation gets planned before the hose is connected.
The process is loud. Hearing protection is standard for anyone in the working area, which is why you will see ear defenders in most of our photographs.
Surfaces come out cold. On some jobs that means waiting a few minutes before handling, and on others it means condensation as the part returns to ambient temperature.
Air comes from our own compressor. You do not need to provide power, water or a connection of any kind.
Describe what you are dealing with.
A short description and a location is enough to start. Add photos if you can. You will speak to an owner, not a scheduler.