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Why Dry Ice?
 
DRY ICE BLASTING IS NOT ABRASIVE.
It does not remove or harm substrates (when performed by an experienced, trained operator).
  DRY ICE BLASTING DOES NOT PRODUCE
SECONDARY WASTE.
The Dry Ice sublimes to CO2 vapor on impact. Only the contaminates removed remain behind for disposal.
DRY ICE CLEANING WORKS BECAUSE OF…
Kinetic Energy from compressed air propels the Dry Ice particles up to sonic speeds. Though very light in weight, they puncture the
contaminate and chip away at it, thereby opening the surface of the contaminate. On impact, solid CO2 absorbs energy and sublimes instantly to CO2 vapor.
Thermal Differentials create an immediate and localized cold shock to the contaminate, which contracts at -78.50°C versus a substrate, which usually only cools down by up to 15°C to current temperature. This promotes a contact break between contaminate and substrate. It is particularly noticeable where hard resins have been applied to metal surfaces.
Reverse Fracturing: As the Dry Ice sublimes on impact, it increases up to 540 times its volume from solid to vapor, when it enters the cracks within the contaminate. This gas expansion, breaking up the contaminate from within, is the major factor responsible for the Dry Ice cleaning effect.
IN ACTION
Conventional methods are increasingly
problematic
Many of the commonplace methods involve
Various types of solvents, often with many hours of manual labor.
Sand blasting, powder blasting, grit blasting, etc. methods are often problematic. They do the job, but often take away surface
material and thereby may damage the substrate. Therefore conventional blasting methods can
create more problems rather than solutions to their users.
Water and steam blasting within complex machines/equipment systems is never advisable. Electric parts and electronics can be damaged and safety is an issue.
Solvents containing CFC’s have been outlawed for some time now, with more demanding
legislation yet to come. Biodegradable “friendly agents” are unfortunately not very effective in many applications, plus the ever increasing cost of manual labor is a factor.
Industrial cleaning with solvents and manual labor and the aforesaid well known blasting technologies, are practiced everywhere, but can be time consuming, costly, possibly hazardous to people and equipment, and often do not produce satisfactory results.
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