Explanation of Dry Ice Blasting

Dry Ice or CO 2 Blasting is a relatively new cleaning process using solid CO2 pellets (known as dry ice). Dry Ice Pellets sublimate once they've hit the surface to be cleaned (convert directly from a solid blast pellet to a vapour) leaving a clean, dry surface with no residue.


How Does The Dry Ice Blast Cleaning Process Work?

To make dry ice, the proper dry ice blasting equipment and dry ice blasting machines must be used. The Dry Ice Blasting process uses pellets made through a process of taking Liquid Carbon Dioxide (CO2) and expanding it to produce a snow like substance, that is compressed to make hard Dry Ice Pellets. 

Dry Ice Pellets are then propelled at a supersonic speed by a compressed air gun (similar to other blasting systems). Upon impact, the dry ice creates a micro-thermal shock (caused by the extreme cold temperature of -79º C) which breaks the bond between the coating and the substrate. The high pressure air stream removes the dirt from the surface, while the Dry Ice Pellets vapourize (sublimate) before your eyes.


 5 Reasons to use Dry Ice Cleaning

Reason #1: Increases uptime through in-place cleaning

The process is fast, thorough, and can be performed on-line without disassembly and without need for drying time.

Reason #2: Cleans without damaging the substrate
Dry ice blasting is non-abrasive. It quickly removes most contaminates without damage to switches, panels, lines, tubes, wiring or belts.

Reason #3: Reduces or eliminates the need for hazardous solvents
Dry Ice Blasting replaces chemical or solvent based cleaning and manual scrapping.

Reason #4: Quicker and more thorough than cleaning by hand
Get a more detailed and quicker clean with CO2 by getting into tight spaced areas inaccessible by hand

Reason #5: Safe around electrical components
This versatile process cleans heavy industrial build up without damage to sensitive areas like electrical components, switches, wiring, photo electric sensors, etc 


 Dry Ice Blast Cleaning Comparison Chart

The Dry Ice Blasting process is superior to blasting with sand, glass beads and other types of cleaning methods for numerous reasons. As an Eco-friendly cleaning alternative, the dry ice cleaning method is quickly becoming favored for environmental as well as production reasons. Due to the nature of the Dry Ice Blasting process, there is no waste to be disposed of. Tremendous performance gains of little to no production downtime, quality of the clean, no clean-up, and minimized damage to equipment make Dry Ice Blasting a cost-effective cleaning option.

Dry Ice Blast Cleaning vs Traditional Methods

Blasting Cleaning Technique

Waste for Disposal

Abrasive

Toxic

Electrically Conductive

Performance Comparison

Dry Ice

No

No

No

No

Excellent

Sand

Yes

Yes

No*

No

OK

Glass Beads

Yes

Yes

No*

No

OK

Walnut Shells

Yes

Yes

No*

No

Limited

Steam

No

No

No

Yes

Poor

Solvents

Yes

No

Yes

Yes

Limited

* Each of these blasting materials becomes contaminated upon contact if used to clean hazardous objects. When that happens, these materials are then classified as toxic waste requiring safe and proper disposal.