I go for the boiling pan of water and plunge the bottle in, momentarily pushing the top of the cap flat against the bottom of the pan to keep it nice and flat and uniform. I get a 100% sucsess rate with boiling water. With the hot air gun I find that occasionally you get a wrinkle that doesn't fully go away and the top of the cap can sometimes look a bit weird, I'm sure most people wouldn't notice but it bothers me so I end up using another shrink cap. I probably get more like 85-90% sucsess rate with the hot air gun. Probably stating the obvious but with the boiling pan of water method the water needs to be at least as deep as the cap is long plus 1/2" or so to allow for evaporation.
I’m going to give the boiling water method a go for my shrink caps next batch. I’ve been using the kettle and just switching it back on when it goes off. Annoyingly, I had to rip off a shrink wrap that I did today as I discovered that the cork was leaking!
I go for the boiling pan of water and plunge the bottle in, momentarily pushing the top of the cap flat against the bottom of the pan to keep it nice and flat and uniform. I get a 100% sucsess rate with boiling water. With the hot air gun I find that occasionally you get a wrinkle that doesn't fully go away and the top of the cap can sometimes look a bit weird, I'm sure most people wouldn't notice but it bothers me so I end up using another shrink cap. I probably get more like 85-90% sucsess rate with the hot air gun. Probably stating the obvious but with the boiling pan of water method the water needs to be at least as deep as the cap is long plus 1/2" or so to allow for evaporation.
Good points!
I’m going to give the boiling water method a go for my shrink caps next batch. I’ve been using the kettle and just switching it back on when it goes off.
Annoyingly, I had to rip off a shrink wrap that I did today as I discovered that the cork was leaking!
Good luck. Let us know how it goes