Dry ice blasting is basically pressure washing… but with frozen CO₂ pellets instead of water — and it’s used a ton in many industries!

Dry ice blasting is a cleaning process that uses small pellets of solid carbon dioxide, shot at high speed with compressed air, to remove grease, dirt, undercoating, and other buildup from surfaces. When the dry ice hits, it instantly freezes and cracks the contamination, then turns into gas and lifts it off without damaging the material underneath. Since it’s non-abrasive and leaves no residue behind, it’s safe to use on things like wiring, rubber, aluminum, and painted surfaces, and electronics — making it ideal for cleaning engine bays, undercarriages, and other automotive components without taking them apart.

Dry ice blasting is what you use when you want to clean something without changing it.

You use it when you need to:

• Clean without disassembly

• Protect:

  • Wiring

  • Sensors

  • Bearings

  • Seals

  • Rubber bushings

  • Powdercoat

  • Aluminum finishes

• Remove:

  • Oil/grease

  • Adhesive

  • Undercoating

  • Sound deadening

  • Road grime

  • Cosmoline

Because dry ice:

• Is non-abrasive

• Turns into gas on impact (no leftover media)

• Doesn’t introduce moisture

• Won’t embed particles into metal

That last one is huge for performance work — embedded media from sand/glass bead can later break loose and wipe out bearings, turbos, oil pumps, etc. That’s why engine builders hate seeing media-blasted parts that weren’t obsessively cleaned after.

Biggest benefit: it removes contamination without removing material.

That means you can:

• Clean aluminum without hazing it

• Clean powdercoat without dulling it

• Blast around:

  • Wiring

  • Connectors

  • Rubber seals

  • Bushings

  • Bearings

• Strip grease, tar, adhesive, and undercoating
  without etching metal underneath

Media blasting always changes the surface (even glass bead). Dry ice just knocks the junk off and leaves the OEM finish alone — huge for resale prep or preservation work.

Dry ice blasting uses:

• Solid CO₂ pellets (about the size of rice)

• Compressed air (typically 80–250 PSI)

• A blasting gun that accelerates the pellets to high speed

When those pellets hit a dirty surface — like greasy suspension parts or 15 years of underbody grime — three things happen at the exact same time:

1. ❄️ Thermal Shock

Dry ice is -109°F.

When it slams into oil, adhesive, undercoating, etc:

• The contaminant gets super brittle instantly

• It shrinks faster than the metal underneath

• That causes it to crack and lose its grip on the surface

So now all that junk is basically “loosened up”.

2. 💥 Impact Energy

The pellet hits like a tiny hammer:

• Breaking apart the already-brittle grime

• Knocking it off the surface

But because dry ice is soft compared to sand or glass bead:
👉 It doesn’t etch or grind the metal underneath

OEM finishes stay intact.

3. ☁️ Sublimation (This Is the Magic Part)

Dry ice doesn’t melt — it goes:

Solid → Gas instantly

On impact, the pellet turns into CO₂ gas and expands about 800x in volume in a split second.

That rapid expansion:

• Gets underneath the cracked contaminant

• Literally lifts it off the surface from behind

Think microscopic pressure washer from under the dirt.

And since it turns into gas:

• No water

• No leftover media

• Nothing to clean out of bushings, wiring, or oil passages

End Result:

You remove:

• Grease

• Tar

• Sound deadening

• Adhesive

• Road grime

• Undercoating

Without removing:

• Paint

• Powdercoat

• Aluminum finish

• Rubber

• Wiring insulation

That’s why it’s perfect for cleaning assembled engine bays, subframes, or interiors

The simple answer is pretty much anywhere you’ve got grease, adhesive, grime, or buildup on something you don’t want scratched up or soaked — dry ice blasting is best option on the table.

But here are some industries and examples that use this technology all of the time.

AUTOMOTIVE INDUSTRY

Used for:

• Engine bays

• Undercarriages

• Subframes

• Suspension components

• Transmissions

• Interior floor pans

• Sound deadening removal

• Adhesive & tar removal

• Wiring harness cleaning

• Pre-build cleaning

• Leak detection

ELECTRICAL/SENSITIVE EQUIPMENT

Because it’s:

• Non-conductive

• Dry

• Non-abrasive

It can safely clean:

• Control panels

• Electric motors

• Switchgear

• Circuit boards

• Robotics

• Manufacturing electronics

All without shutting down or disassembling in many cases.

RESTORATION WORK

Great for:

• Classic car restorations

• Antique machinery

• Aluminum oxidation cleanup

• Preserving OEM finishes

• Removing years of grime without grinding metal

This is where it really beats sandblasting — you clean without erasing history.

INDUSTRIAL./MANUFACTURING

Common uses:

• Injection molds

• Conveyor systems

• Printing presses

• Production lines

• Tooling & dies

• Grease buildup on machinery

Often done in place without cooling down equipment first.

FOOD AND COMMERCIAL EQUIPMENT

Used in:

• Bakeries

• Food processing plants

• Commercial ovens

• Packaging equipment

• Kitchen exhaust systems

Since there’s:

• No water

• No chemicals

• No leftover media

It’s food-safe after ventilation.