Dry Ice Safety & FAQs

Dry ice is solid carbon dioxide (CO₂). Unlike regular ice, which is made from water, dry ice sublimates directly from a solid to a gas at -78.5 °C (-109.3 °F).

Yes, handling dry ice requires some precautions, but you don't need special equipment beyond basic safety gear. Here are a few important tips:

1. Gloves: Always wear insulated gloves to prevent frostbite, as dry ice can cause skin burns.
2. Eye Protection: Safety goggles are recommended to protect your eyes from splashes or small pieces.
3. Ventilation: Use dry ice in well-ventilated areas. It sublimates into carbon dioxide gas, which can displace oxygen in confined spaces.
4. Storage: Keep dry ice in a cooler or an insulated container, but never in a sealed container as the pressure can build up and cause it to explode.
5. Avoid Direct Contact: Try not to handle dry ice directly; use tongs or other tools if possible.
6. Following these precautions will help you handle dry ice safely!

Dry ice can last for about 24 to 48 hours if stored properly in an insulated container. However, it will sublimate (turn from solid to gas) at a rate of about 5 to 10 pounds every 24 hours, depending on the insulation.

Dry ice blasting uses compressed air to propel small pellets of dry ice at high speeds onto a surface. The extreme cold of the dry ice (−78.5°C or −109.3°F) causes contaminants to become brittle and shatter, allowing for effective cleaning without damaging the underlying material.

Dry ice cleaning offers several advantages:

1. No Residue: Unlike sand or other blasting materials, dry ice sublimates, leaving no residue.
2. Non-Abrasive: It’s gentle on surfaces, making it ideal for delicate equipment.
3. Environmentally Friendly: No chemicals are used, and it produces minimal waste.
4. Efficiency: It can clean hard-to-reach areas without dismantling equipment.

The operational cost varies based on factors like the size of the job and the equipment used. Generally, costs can range from $0.50 to $3.00 per square foot for dry ice blasting, depending on labor and dry ice usage.

The amount of dry ice required depends on the size of the area being cleaned and the thickness of the contaminants. On average, 1-3 pounds per minute is normally sufficient for most cleaning. Blasting has a variable ice rate that can be adjusted for more or less, depending on the specific application.

1. For dry ice blasting, you typically need dry ice rice 3mm, which is easier to use and provides optimal performance for the blasting process. Ensure it's of good quality to prevent clogs and inefficiencies.
2. For refrigeration and freezing it is most common to use 16mm pellets.