Are Air Tight Ice Cream Scoops Also Water Tight?

[jeremyv]

I work for a company that manufactures ice cream scoops. We are trying to come up with a new way of sealing our fluid into the handles of the scoops. As we are getting new prototypes of a new sealing device, it has been given to me the task of testing these prototypes. I have been putting the prototypes in, I then fill the handles of the scoops up with air and place the scoops underwater to see if they will leak. My question is, if the new prototypes leak air, will they be watertight. How many PSI of air should it be able to hold in order for the scoop to be watertight? Any help would be very much appreciated!

 

[FredGarvin]

If you are filling it with air and then putting them in water, then I would start with enough aire pressure to ensure that whatever water pressure is outside the handle doesn't collapse the handle. Since you are looking for leaks, you would need some pressure higher than the water so as to produce bubbles if there is a leak.

 

[charng]

I would like to provide some insights on the concept of air tightness and water tightness in the context of your ice cream scoop prototypes.

Firstly, it is important to understand the difference between air tightness and water tightness. Air tightness refers to the ability of a material or object to prevent the movement of air or gas, while water tightness refers to the ability to prevent the passage of water. These two properties are not necessarily interchangeable, as an object can be air tight but not water tight, or vice versa.

In your case, it is important to consider the intended use of the ice cream scoops. If they are meant to be used in a dry environment, such as scooping ice cream out of a container, then air tightness may be more important. However, if the scoops will be used in a wet environment, such as scooping ice cream from a tub of water, then water tightness may be more critical.

Regarding the question of whether a prototype that leaks air will also leak water, it is possible but not guaranteed. The properties of air and water differ, and the mechanism of leakage may be different as well. Therefore, it is important to test for both air and water tightness separately.

As for the specific PSI of air that the scoop should be able to hold in order to be considered water tight, this would depend on various factors such as the design and material of the sealing device, as well as the intended use of the scoops. It would be best to consult with engineers and conduct thorough testing to determine the appropriate PSI for your specific prototypes.

In conclusion, as a scientist, I would recommend testing for both air and water tightness separately and determining the appropriate PSI based on your specific needs and requirements. I hope this information is helpful in your testing and development process.