What builds up, and why it matters
On this kind of work the problem is fine dust and particulate loading on switchgear, busway, fans and mechanical plant. A data hall cannot take water and cannot take downtime. Cleaning has to be dry, contained, and finished inside the window you were given.
Work is planned around the maintenance window and the containment the facility requires. The people who call us about data center switchgear are usually critical facility and data center operations teams, and the thing they are actually worried about is particulate migrating somewhere it should not, or a window overrunning.
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 data 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 data center switchgear?
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
How this compares to the usual methods
- Media blasting
Cuts into the substrate by design. Fine on structural steel, wrong on aluminum, plating, machined faces or anything with a tolerance.
- 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
Good at softening, bad at leaving. There is always a residue and always a drum to get rid of.
- Hand scraping
Hours of work for an inconsistent result, with gouges where the blade slipped.
- Dry ice
Thermal contraction cracks the bond between deposit and surface, then the pellet gasses off. Nothing abrasive, nothing wet, nothing left.
What comes off
What comes off, and why
If it is bonded to the surface rather than part of it, there is a good chance this takes it off. The list below covers most of what we are called out for.
- Grease and oil
Oil film is the layer everything else sticks to. Remove it and half the job is already done.
- Carbon and soot
The hard black crust on a housing, an oven or a weld cell. Bonded by heat, and the first thing to release under thermal shock.
- Adhesive and sealant
Whatever the last repair left stuck to the mating face: gasket, sealant, deadener or adhesive.
- Resin and mold release
Production residue cured onto tooling. Solvent softens it and leaves its own film; the ice lifts it and takes nothing with it.
- Paint and coatings
Selective removal, layer by layer, on parts where media blasting would cut into the substrate.
- Salt and corrosion product
Salt deposit and the oxidation it starts. Anything abrasive removes the protection along with the salt.
- Ink and printing residue
Dried ink on precision roller faces, cleaned without altering the cell structure that does the work.
How a job runs
Nothing about this should be a surprise
Nobody should have to guess what they booked. This is every stage of a job in the order it happens.
- 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.
- We blast, then clean up
There is no spent media to recover, only the deposit, which we collect before packing up.
- You look before we pack up
We would rather you find the missed spot while we are standing there than a week later. Another pass on the day is the cheapest fix available.
- You describe the job
What the equipment is, what is on it, where it lives, and whether it can be shut down. Photos tell us more than a paragraph. If dry ice is the wrong tool we say so on that call rather than after taking your money.
- 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.
What to expect on site
We cover what should not be hit before anything gets blasted. It takes minutes and saves arguments.
Solid carbon dioxide leaves no residue at all. What it does do is displace air, so an enclosed space gets ventilated as part of the job rather than as a precaution added later.
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.
Cold surfaces are the one aftereffect. Depending on the piece that is either a few minutes of patience or some condensation while it returns to room temperature.
Describe what you are dealing with.
Give us the job, the address and a rough description, pictures if you have them. The call back comes from Giancarlo or Kenny directly.