Dry Ice Blasting Questions, Answered Directly

Dry ice blasting is an industrial cleaning method that accelerates solid CO₂ pellets in a compressed air stream to remove contamination from surfaces. Cleaning happens through kinetic impact, thermal shock at −109 °F, and micro-expansion as each pellet flashes to gas and expands roughly 800 times. The pellet disappears, so the only thing left to collect is the contaminant that came off.

Yes. Dry ice blasting, CO₂ blasting, CO₂ cleaning, dry ice cleaning, carbon dioxide blasting, and cryogenic blasting all describe the same process. Buyers and plants use the terms interchangeably, so a quote for CO₂ cleaning and a quote for dry ice blasting are quotes for the same work.

Grease, oil, carbon, soot, char, mold, adhesives, release agents, ink, paint overspray, resin, product residue, protein and sugar buildup, weld slag discoloration, and many coatings. It is not the right tool for heavy scaling rust or thick mill scale, where abrasive blasting is more economical.

No secondary waste. The CO₂ sublimates directly from solid to gas, so nothing accumulates on the floor, in drains, or in equipment cavities. Disposal is limited to the original contaminant, which is usually swept or HEPA-vacuumed.

The CO₂ used for blasting is reclaimed — captured as a byproduct of existing industrial processes such as ammonia and ethanol production, then compressed into pellets. Blasting releases no new CO₂ into the atmosphere; it reuses gas that was already produced.

Most work runs between 80 and 250 psi with 150 to 350 CFM of compressed air, depending on nozzle and application. Delicate surfaces such as electronics, gaskets, and painted panels are cleaned at the low end; carbon on turbine components and HRSG tubes runs at the high end.

Yes. CO₂ is a non-conductive dielectric medium and the process introduces no moisture, so de-energized motors, MCCs, switchgear, transformers, bus ducts, generators, and control panels can be cleaned in place under NFPA 70E procedures with lockout/tagout in effect.

Yes. CO₂ is FDA, USDA, and EPA accepted for use on food contact surfaces, and no chemicals, water, or abrasive media are introduced. That is why bakeries, dairies, protein plants, and packaging lines use it between production runs without a full teardown or a sanitation rinse cycle.

No, when parameters are set correctly. Dry ice is softer than steel, aluminum, tool steel, concrete, and cured coatings, so it removes the contaminant instead of eroding the surface. Dimensions, tolerances, and coating profiles are preserved. The real precautions are thermal shock on brittle materials, masking bearings and open electronics, and ventilation.

Avoid or test first on soft plastics, thin brittle composites, degraded gaskets, unfired glazes, and severely delaminated coatings that will flake unpredictably. Heavily rusted or mill-scaled steel that must be taken to a white-metal profile is better served by abrasive blasting.

It can be, which is why it is managed. CO₂ is heavier than air and settles low, so crews use forced ventilation, low-level exhaust, and continuous CO₂ monitoring, and follow confined-space entry procedures. Work stops if levels approach the exposure limit.

Typically no containment and no water-discharge permit, because there is no runoff and no spent media. Standard requirements are hearing protection, eye protection, insulated gloves, ventilation, and CO₂ monitoring. Coating removal may still trigger lead or asbestos rules based on what is being removed, not on the blasting method.

Most projects are quoted as a day rate or a per-shift rate that includes crew, blast unit, dry ice, and consumables, with additional charges for travel and after-hours or outage work. The hourly rate is higher than pressure washing or sandblasting, and the total project cost is usually lower once downtime, teardown, media cleanup, and disposal are counted.

Renting is cheaper on paper and more expensive in practice for one-off work, because you absorb dry ice sourcing and sublimation loss, air compressor rental, operator learning curve, and your own labor hours. Service makes sense for periodic and outage work; rental makes sense for plants with steady weekly volume and a trained operator.

24 to 72 hours for emergency outage support and same-week to two-week scheduling for standard scope, anywhere in the 48 contiguous states. Planned outages are usually booked weeks ahead so the crew is staged before the unit comes offline.

Compressed air or space for our compressor, electrical power for the blast unit controls, site access and safety orientation, lockout/tagout on the equipment being cleaned, and ventilation in enclosed areas. We bring the blast equipment, dry ice, hoses, nozzles, PPE, and containment as needed.

Yes. Most industrial cleaning is scheduled around production, so night shifts, weekends, holidays, and planned outages are standard. Emergency response is available 24/7 at (866) 648-0030.

Facilities commonly report 40 to 80 percent less cleaning downtime, 25 to 60 percent lower cleaning labor, and elimination of secondary waste disposal, with payback typically in 3 to 12 months. The variables that move the number most are line value per hour and how often the equipment is cleaned.

Yes, and it is one of the highest-value applications. Finned tube bundles, SCR and CO catalyst faces, ammonia injection grids, duct walls, and burner assemblies are cleaned in place without water, without media in the gas path, and without wire brushing that bends fins. Restored heat transfer shows up directly in backpressure and heat rate.

Yes. Compressor blades, diaphragms, rotors, stators, windings, and generator end turns are cleaned of oil film, carbon, and dust without moisture and without abrasive media that could lodge in the flow path. Cleaning is dry, so units can be returned to service quickly.

Yes. It removes mold and mold staining from framing, sheathing, joists, and masonry without soaking the wood, which matters because added moisture is what feeds regrowth. It also lifts hyphae from within the top wood fibers, where surface wiping and chemical fogging do not reach.

Yes. Char and smoke residue are removed from framing, brick, block, steel, and ductwork without water or blast media, so structures are cleaned and deodorized in place and rebuilding can start sooner. Soot removal is one of the fastest visible-result applications.

It cleans to a coating-ready surface without creating an anchor profile. That is ideal when the existing profile must be preserved or when a spec calls for cleaning only, and it is not a substitute when the spec requires a measured blast profile.

Yes, and many are cleaned hot and in the press. Removing release agent, resin, vulcanization residue, and vent buildup in place eliminates cooldown, teardown, and re-qualification cycles, which is usually where the downtime savings come from.

Dry ice wins wherever water is a problem: electrical equipment, in-plant cleaning, insulated surfaces, and anything that would rust or need dry-out time. Pressure washing remains fine for outdoor concrete, structures, and rinse-tolerant surfaces with drainage available.

Both are relatively gentle, but soda leaves an alkaline residue that has to be rinsed and neutralized and can affect subsequent coating adhesion. Dry ice leaves nothing, so it is preferred inside plants and on assembled equipment.

It removes the chemical handling, dwell time, rinse, and waste stream entirely, which is why plants adopt it for recurring maintenance. Chemicals still have a place for scale, passivation, and CIP processes inside closed systems.

Yes, and it is common on mixed scope. Corroded structural steel gets abrasives; the adjacent motors, panels, tooling, and precision surfaces get dry ice. We will say plainly when part of your scope belongs to another method.

All 48 contiguous United States, with mobile crews that travel to the facility. Planned outage support is available to all 50 states. Call (866) 648-0030 to confirm coverage and scheduling for your site.

Power generation, food and beverage manufacturing, automotive, oil and gas, general manufacturing, aerospace and defense, restoration and remediation, electrical and utilities, and commercial facility maintenance.

Send the equipment, the contaminant, the approximate square footage or unit count, and your shutdown window, and you get a scoped quote back — no site visit required for most projects. Call (866) 648-0030 or submit the quote form.

Yes. Scope of work, safety documentation, before-and-after photos, and completion reporting are provided on request, which plants use for sanitation records, outage close-out packages, and insurance documentation on restoration work.