Hi all!
I delivered a Minnie Mouse balloon column with a foil head last night which was filled with air not helium, as soon as I took the head out of the car into the cold it started to deflate. Is this normal? I know helium filled balloons do this...needless to say I got a bit of a panic on! I'm just about to deliver another one and a bit worried it will happen again...there's always the dredded thought it will stay like that?  :?

I believe it is to do with the warmth of the air inside the foil, a decorator will be able to explain better than I can I'm sure.

Well, if you take it back into a room where warmer is, it will return to its original state. Not just helium shrinks in cold...
Always inflate at the same temperature like the destination and don't worry when it shrinks in cold a little bit - it will return to its original state shortly. Foil balloons aren't elastic like latex balloons, so in such a case they looks like a deflating balloon.

Phew!
Thanks for your reply Graham and Leslie...that's put my mind at rest anyway!
The Minnie Mouse I delivered last night didn't shrink when I took it out the car and it was freezing! Mind I ran with the 4ft Minnie Mouse column from the car ha ha.
Thanks again
Kaeren x