What builds up, and why it matters
On this kind of work the problem is whatever is bonded to the surface rather than part of it. Sometimes the job is named after the contaminant instead of the machine. The method is the same: thermal shock breaks the bond and the contaminant releases.
Scope is set by what has to come off and what must survive underneath. The people who call us about paint removal with dry are usually anyone with something stuck to something else, and the thing they are actually worried about is taking the substrate along with the coating.
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 removal 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 paint removal with dry?
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
The other ways to do this
- Solvent and degreaser
Trades the deposit for a residue, plus ventilation and waste to deal with, and it is hard on the finish.
- Hand scraping
It is the fallback when nothing else is available, and it shows on the surface afterward.
- 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.
- Dry ice
Thermal shock breaks the bond. The pellet sublimates, so nothing abrasive touches the part and nothing is left to collect but the contaminant.
What comes off
What dry ice actually removes
The rule of thumb is simple: anything stuck on rather than built in. These are the deposits we see most.
- Adhesive and sealant
Whatever the last repair left stuck to the mating face: gasket, sealant, deadener or adhesive.
- Resin and mold release
Release agent and resin build-up on tooling, where a solvent fix trades one residue for another.
- Paint and coatings
Selective removal, layer by layer, on parts where media blasting would cut into the substrate.
- Salt and corrosion product
A constant in South Florida. Removing it without stripping the protective finish is the whole trick.
- Ink and printing residue
Dried ink and coating build-up on rollers and press components, where the surface texture is the product.
- Food residue
Carbonized product, fat, starch and sugar build-up on processing equipment, cleaned without chemicals touching a food contact surface.
- Grease and oil
The soft film that holds dust and swarf against metal. It is what makes a part feel dirty long after it looks clean, and it comes off first.
How a job runs
How a job actually runs
Most people have never watched dry ice blasting happen and are not sure what they are agreeing to. Here is the whole sequence, start to finish.
- We test a small area
An out-of-sight patch comes first so pressure and pellet size are proven before anything that shows. Soft alloys, older paint and bare metal each want different numbers.
- We blast, then clean up
The ice is gone the moment it does its work. What stays behind is the grease or carbon that came off, and collecting that is part of the job, not an extra.
- 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
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
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 the job is like to stand next to
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.
This is not a quiet method. Ear defenders are standard issue on site for anyone nearby.
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.
Describe what you are dealing with.
Send the equipment, the location and a short description. Photos help. You will hear back from Giancarlo or Kenny, not a call center.