CChhaarraacctteerriissttiiccss ooff DDrryy IIccee BBllaassttiinngg BBllaasstt MMeeddiiaa (cid:122)(cid:122) EEqquuiippmmeenntt (cid:122)(cid:122) SScciieennttiiffiicc PPrriinncciipplleess (cid:122)(cid:122) BBllaasstt MMeeddiiaa –– DDrryy IIccee Solid form of Carbon Dioxide (cid:132) Available in Pellets and Flakes (cid:132) -109°F (cid:132) Inert (non-combustible) (cid:132) RREECCYYCCLLEEDD - Man-made bi-product of (cid:132)(cid:132) hydrocarbon and ammonia production 0.03%/Vol in normal atmosphere (cid:132) EEqquuiippmmeenntt SScciieennttiiffiicc PPrriinncciipplleess DRY ICE BLAST CLEANING Impact Flushing Action of CO2 Particles Uses kinetic energy effectively sublimates on impact. SScciieennttiiffiicc PPrriinncciipplleess Thermal Effect (cid:132) Kinetic Effect (cid:132) Sublimation Effect (cid:132) Thermal Effect Dry ice particles have a temperature of –109F. When these particles impact the impurities on the surface, the impurities are cooled down tremendously, shrink and then loosen from the surface. In most cases the surface temperature will fall below most impurities freeze point. As impurities freeze they lose their adhesion. Kinetic Effect When dry ice particles exit the nozzle, they have kinetic energy. As in commercial blast cleaning the impurities are dislodged from the surface. Unlike sand, dry ice has a lower hardness characteristic and therefore greater kinetic energy can be used to break impurities from the surface without damage occurring. Sublimation Effect When dry ice particles strike the surface, they immediately phase into gas from solid. The effect increases the gas volume approximately 700 times. The sudden increase in volume assists in moving the brittle fragments of impurities away from the surface. TTyyppeess ooff AApppplliiccaattiioonnss Orrggaanniicc//BBiioollooggiiccaall CCoonnttaammiinnaannttss (cid:132) MMaann--mmaaddee//IInndduussttrriiaall CCoonnttaammiinnaannttss (cid:132)(cid:132) SSuurrffaaccee PPrreeppaarraattiioonn && CCooaattiinnggss RReemmoovvaall (cid:132)(cid:132) TTyyppeess ooff AApppplliiccaattiioonnss OOrrggaanniicc//BBiioollooggiiccaall CCoonnttaammiinnaannttss Mold Moss (cid:132) (cid:132) Mildew Bacteria (cid:132) (cid:132) Dirt/Mud Decaying Matter (cid:132) (cid:132) Algae Fruits & Vegetables (cid:132) (cid:132) Bird Droppings Sugars/Syrups (cid:132) (cid:132) Soot Flours & Grains (cid:132) (cid:132)