Is there a way to fix loose capsules?

[theylivewesleep27]

Ive bought some silver bars that have capsules, but the capsules are loose and they fall apart everytime i try to pick the bars up. Is there a way to fix this? I was thinking mabe heat the capsule up with a hair dryer then close them together? Maybe it will expand with the heat then shrink when it cools down making it tight again?

[fehk2001]

glue the edge and then sand some the glue off with very fine sand paper, just try to thicken the edge , BUT ......

best way is get a new capsules 

[Pete]

I've seen this with some brands of capsules.
When you go to pick up your coin or bar it can fall out as the two parts separate unexpectedly.
Depending on how many you are talking about you have 2 options -

1. Buy better capsules
2. try a small tube of UV curing epoxy.

I bought UV epoxy on eBay for a couple of £ ( had to wait 3 weeks from China though ).
The same product was 5 times the price in the UK - rip-off as usual.

You put a couple of small drops of clear epoxy on the capsule rim and close it then you shine the supplied UV LED on the epoxy for about 30 seconds and it hardens.
Alternatively just leave on a window ledge in daylight for a day.
This product is not adhesive and hardens completely.
Some glues will gas out over time and you may in years to come get some discolouration of your silver.
I definitely experienced this with proof silver coin sets, maybe 25 years old,  from the Canadian Mint that had capsules, glued shut at the mint.
Each coin spotted ( not milk spots ) and I ended up selling for scrap beautiful - once - boxed proof sets.