Thanks, Donna, and you read me exactly as I meant it
Just to clarify:
should not be left unchecked (unless the egg is under cover of course).
2) To really solve the leaks
, you'll need to re-bed whatever is leaking (i.e. remove whatever is leaking - rivet, window, vent, etc. - clean the substrate, and then re-install the item with bedding (butyl, etc.) under the flange - not on top!.
However, you were asking about storing the egg, and since that's usually the off-season, when it is often cold outside, I offered 3M #225 tape as a temporary solution that would get you by for a few months and then be easily removable when you wanted to fix the leaks
properly. I didn't figure you would be using the egg with the tape on it, so I wasn't thinking the cosmetics would be a problem (If I mis-understood and you were asking about a long-term fix I'm sorry about that.)
In my opinion, leaving the leaks - even if only short term - is not a good idea, as moisture from leaks is probably the number one "killer" of our eggs.
I would strongly suggest you do not use silicone. There are two problems with it:
1) It will usually not do the job very effectively (not as effectively as butyl, for example).
2) It will often be extremely hard to remove
, and even when you have "removed" it, an invisible contaminating oil will remain. This oil will make it hard for any new sealant to stick, and will be-devil you if you (or anyone else) ever wants to paint
I'm a big fan of butyl, however if you don't want to use it, there are other caulks that will do the job, such as polyurethane, polysulfide, etc. (depending on what you are sealing).
I hope that clarifies - and sorry if I caused confusion.