I heard the term "re-enterable potting compound", which is a gel-like (possibly hard?) material that can be used to fill electronics enclosures for water intrusion protection and other things.
What is meant by "re-enterable", exactly, and what forms does it tend to come in?
I assume this means that it can be removed and the device re-worked if necessary, although it could simply mean "probe through".
If my assumption is right, how does one "re-enter"? How is the compound cleaned without damaging any electronics or other possibly sensitive items that it's covering?
I used to work with PCBs and transformers that I suppose use non-re-enterable potting or conformal coating, and re-working those can be a huge pain, but probing was never a problem (on the PCBs). A sharp thin probe would work, and the hole could be repaired.
Here is another question about removable water protection, however "re-enterable" isn't used anywhere. I presume the answer there by D_Weight might be close.