Apple store service: using gum or clay to remove dust from iPhone?

[Guest replay35]

Hi there,

 

I just came back from the Apple Store. My iPhone 12 was full of dust, did not charge anymore and even the headset when I called sounded like i was talking to someone down in a submarine.

 

They offered to clean the dust, and I agreed. So he did it in front of me, it was some sort of clay/gum they use, and it will take of all the dust. Does someone knows what it is? Where can you buy this?

 

I googled, but could not find anything.

 

Thank you,

 

Nina

 

Source: MacRumors