The ASCOJET Dry Ice Blasting machine accelerates the dry ice pellets to a speed of approx. 300 m/s. The pellets hit the object to be cleaned. The surface is shock-frozen in a fraction of a second. Due to the sudden thermo shock generated on the surface to be cleaned, the coating/dirt contracts, becomes brittle and cracks. Due to the cracking of the surface, the pellets can reach under the dirt and remove it. The additional kinetic energy removes the coating/dirt from the surface. See similar questions...

Dry Ice is frozen carbon dioxide, a normal part of our earth's atmosphere. It is the gas that we exhale during breathing and the gas that plants use in photosynthesis. It is also the same gas commonly added to water to make soda water. Dry Ice temperature is extremely cold at -109.3?F or -78.5?C. We always pack enough dry ice to keep your frozen items frozen while in transit to you. See similar questions...

Because the ice is cold (sub-zero) but never gets wet when it melts as it sublimates (see earlier question) turning directly from a solid to a gas without ever becoming a liquid. See similar questions...

Yes. This is so the formula stays concentrated. The hair needs to be clean and free of any gel or product. See similar questions...

This process only takes about 5 seconds depending on how well you work the granular drying agent over the grip during the shaking/inverting process - for best results please follow the instructions/steps. See similar questions...

Although during sublimation dry ice expands by approximately 800 times from its pelletised format into a gas, TCP containers do not provide an air-tight seal to their contents and so the gas is free to escape without the issue of explosion. Dry ice should never be loaded into a 6.2 dangerous goods secondary pack. See similar questions...

Some samples must remain frozen, requiring that they be shipped with dry ice. Standard cold packs or regular ice will not be sufficient to maintain the samples in a frozen state during transit. Three to four pounds of dry ice will be sufficient to keep the samples frozen during shipping, provided that remaining air space in the shipping box has been filled with styrofoam peanuts or newspaper. HEMEX cannot provide dry ice. It must be obtained in your local area. See similar questions...

Dry ice is solid carbon dioxide gas. It's called dry ice because when it 'melts' it changes in state from a solid directly to a gas without ever becoming a liquid. This process is called sublimation. When dry ice is put into boiling water it sublimates and creates these clouds of thick heavy fog which clings to the ground (because it is cold and more dense than air). See similar questions...

Dry ice evaporates, so there may not be any visible dry in the package upon opening. If the food is cool to the touch the food is OK. See similar questions...

CO2 snow blasting is not actually in competition with dry ice pellet blasting but is a complementary cleaning method. The reason is that the cleaning performance is much lower and you have to work with high air pressures. CO2 snow blasting can then be brought into action if you have to clean very delicate components or if dry ice pellet blasting produces a large surplus of performance. However, our experience shows that most customers prefer the more efficient cleaning method, i.e. See similar questions...