What builds up, and why it matters
On this kind of work the problem is oil, carbon, scale and hydrocarbon residue on generation and process equipment. Energy equipment is large, awkward to access and costly to take out of service, so cleaning in place during an outage is worth far more than a faster method that requires teardown.
Work is planned around outages and turnaround schedules. The people who call us about power plant are usually operations and maintenance planners, and the thing they are actually worried about is extending an outage that was already tightly planned.
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 energy 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 power plant?
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
Why not just pressure wash it
- Solvent and degreaser
It loosens the mess and leaves its own behind, along with fumes and something to dispose of.
- Hand scraping
It is the fallback when nothing else is available, and it shows on the surface afterward.
- Media blasting
It works by removing material, which is the problem. Acceptable on heavy steel, damaging on soft alloy, plating or a machined surface.
- Pressure washing
It is fast and it is wet, which is fine outdoors and unusable on anything with a winding in it.
- Dry ice
It is the only one on this list where the media stops existing the moment it has worked.
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.
- Ink and printing residue
Dried ink on precision roller faces, cleaned without altering the cell structure that does the work.
- 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
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
Taken off in a controlled way when what is underneath matters more than speed.
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.
- You describe the job
Describe the equipment and the mess. If it cannot come offline that changes the plan, so say so early.
- We look at access and containment
Access drives the plan: reach, siting, masking, and the route the removed material takes off the job. It is the part customers think about least and we think about most.
- We test a small area
Pressure and pellet size get dialed in on an inconspicuous spot before we touch anything visible. Painted parts, soft alloys and older finishes all behave differently, and the right setting on one is the wrong setting on another.
- 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.
What to expect on site
Everything the rig needs arrives with it. No tap, no drain, no outlet.
Masking happens first. Whatever is adjacent and vulnerable gets covered before the hose is picked up.
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.
This is not a quiet method. Ear defenders are standard issue on site for anyone nearby.
Send us the job.
Tell us what the machine is, where it is and what is on it. A photo or two speeds it up. One of the owners calls you back.