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FAQ

What is Dry Ice?

Dry Ice is carbon dioxide in solid form. It can be produced as pellets or blocks of various sizes. At atmospheric pressure, the temperature of Dry Ice is ­79°C.

How Does Dry Ice Cleaning Work?

Reduces bonding between the coating and the underlying surface. This allows Dry Ice to permeate the coating. Explosive Effect – Sublimation: Dry Ice penetrates the coating and immediately sublimes (passes directly from solid to vapour state). This results in a 700­fold increase in volume, an explosive effect that lifts the coating off the surface.

Why Should I Use Dry Ice Cleaning instead of traditional methods?

Dry Ice cleaning is a completely Dry process. Dry Ice cleaning is non-toxic, non­conductive and non­ abrasive. Dry Ice vaporises immediately on contact with treated surfaces. This gives several advantages in comparison with traditional cleaning methods. With Dry Ice cleaning there is no secondary waste material (sand, glass, plastic, etc.). The only waste to be swept or vacuumed up is the coating dislodged by the treatment. It is therefore possible to clean objects in which other cleaning methods' residual cleaning material would collect in every inaccessible corner. Dry Ice cleaning allows cleaning to be performed while machines are running, without the need for dismantling. This is, of course, of great economic importance as costly downtime can be eliminated or drastically reduced.

What happens to the ‘Blasted Off’ Coating?

Dry coatings crack into small flakes that can be swept or vacuumed up. Moist coatings (e.g. oil or grease) are carried away in the compressed air jet in a fashion similar to that seen with high-pressure hosing. The treated surface is left Dry and clean.

Which materials can withstand Dry Ice Cleaning?

As the process is Dry and non­abrasive, any material can be cleaned by Dry Ice cleaning without ill effects. For example, Perspex and highly polished aluminium can be treated without the surface becoming matt.

Does Dry Ice Cleaning have economic benefits?

Machinery can often be cleaned with Dry Ice cleaning while it is running, without the need for dismantling and subsequent re­assembly. This is, of course, of great economic importance as costly downtime can be eliminated or drastically reduced. Costs connected with the disposal of cleaning material and solvents are eliminated. Cleaning and maintenance payroll costs will often be reduced to a fraction of present levels by substituting Dry Ice cleaning for traditional cleaning methods. Dry Ice cleaning treats material surfaces very gently.

Is Dismantling Necessary Before Dry Ice Cleaning?

It is often unnecessary to dismantle machinery or equipment to be cleaned by Dry Ice cleaning because the process is completely Dry and leaves no cleaning material or chemical residues

Can I use Dry Ice Cleaning to Clean Hot Machinery While It is Running?

Yes. Faster and more effective cleaning can often be achieved when the object to be cleaned is hot.

Can I Minimise Downtime – or Avoid It Entirely?

Yes. In many cases it will be possible to clean machinery without shutting it down. In other cases, it will be possible to reduce the duration of shutdowns for cleaning purposes, as cleaned surfaces remain Dry.

Does Dry Ice Cleaning Damage the Underlying Surface?

No. Cleaning pressure can be adjusted to suit the material to be treated so that coatings can be removed without damaging the underlying material itself. This means that Dry Ice cleaning can also be used on easily damaged materials like nickel, chromium and soft aluminium.

Is an External Compressed air Source Necessary?

Yes. The Dry Ice blast machine must be connected to an external compressed air source with the following data: Operating pressure – minimum 5 bar / maximum 16 bar. Compressed air consumption – 3­11 m3/min. depending on nozzle combination.

However, for our demonstrations, we supply our own portable compressor and only require a standard power supply.

Is the Dry Ice Jet Capable of Conducting Electricity?

No, the Dry Ice jet is non­conductive as long as the compressed air used is Dry.

Does Dry Ice Cleaning Cause Condensation?

Condensation will normally not occur when cleaning warm surfaces, as the temperature of the surface will remain above the dew point. To prevent condensation occurring in connection with intensive cleaning or when cleaning is performed in cold locations, the use of heat lamps, fan heaters or heated compressed air is recommended.

What cannot be achieved by Dry Ice Cleaning?

Dry Ice cleaning is non­abrasive and treats surfaces very gently. Therefore, it cannot be used to obtain a rough surface.

Can Dry Ice Cleaning be used in the Food Industry?

Yes. Dry Ice cleaning is ideal for the food industry, as the cleaning process does not involve the use of water or chemicals. The various applications of Dry Ice cleaning in the food industry clearly illustrate just how versatile the system is. The process is used to remove baked on food deposits from ovens and to clean mixers and moulds. It can remove paper and adhesives from packaging machinery. Dry Ice cleaning can be used on plastic and metal surfaces irrespective of whether the object to be cleaned is hot or cold.

Can Dry Ice Cleaning be used on Electronics?

Yes. Dry Ice cleaning can be used to clean dirt and soot from electronics without making them wet or using chemicals. Dry Ice cleaning can be used on units of up to 29 Kw without disconnecting the power supply. Unexpected power failure and resulting production shutdown can be avoided by periodically cleaning electronic components.

Can Dry Ice Cleaning be used on Packaging Machinery?

Yes. Dry Ice cleaning effectively removes adhesive residues and other dirt from packaging machinery. This improves package line flow considerably and can reduce the incidence of unexpected shutdown. Clean adhesive nozzles and chain drives can result in large savings in the purchase of spare parts

Can Dry Ice Cleaning be used in Printing?

Yes. Dry Ice cleaning is an effective means of removing wet and Dry ink, powder, paper dust and adhesive residues. This keeps the number of unexpected shutdowns to a minimum, improves product quality and reduces maintenance time.

Can Dry Ice Cleaning be used on Moulds?

Yes. Dry Ice cleaning can beneficially be used to clean moulds during production. This reduces downtime. Mould surfaces are not damaged, as the process is very gentle.

Can Dry Ice Cleaning be used on Buildings?

Yes. Dry Ice cleaning can be used to remove soot and dirt from buildings and thus restore surfaces. The method is often used for factory buildings where it is crucial to recommence production as quickly as possible. Because Dry Ice vaporises on contact with the building surface, Dry Ice cleaning can be used to clean the insides of buildings without the need to move equipment, machinery or furnishings. Where traditional cleaning methods – involving the use of water and chemicals – are used, it is often necessary to dismantle and move equipment to protect it from damage.

Can Dry Ice Cleaning be used in the Pharmaceutical Industry?

Yes, the pharmaceutical industry sets high hygiene standards. Dry Ice cleaning is therefore the ideal cleaning method. It is a clean and Dry process that effectively and quickly removes coatings and deposits from moulds, conveyors, containers, mixers and other production equipment. Steam and water based cleaning methods can produce health risks. Firstly, steam can provide a breeding ground for bacteria and other micro-organisms. Dry Ice cleaning is a Dry process that eliminates this problem. Secondly, cleaning with water and steam can increase the risk of accidents with electronics. As Dry Ice vaporises on contact with the surface being cleaned, there is no secondary waste material. Because Dry Ice cleaning is a non­abrasive process, moulds used in production cannot be damaged.

Does Dry Ice Cleaning have any Environmental Consequences or Benefits?

Dry Ice is completely non-toxic. In contrast to cleaning methods that use water or high-pressure hosing, there is no emission of polluted water to the environment. The dislodged coating can be swept or vacuumed up and disposed of as appropriate. Dry Ice cleaning produces no toxic fumes from solvents and other chemicals during cleaning.

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