the post below was wrong i could use foil balloons

this is true though:
so accroding to the reasearch i have done, hairspray and hi-float a substace used to keep balloons inflated for longer are pretty similar in accordance to their mixture

i have done some research and it is said that temperature effects the pressure of the gas inside the Balloon.

Higher Temp. = Higher Pressure = Higher Speed of Deflation
Lower Temp. = Lower Pressure = Lower Speed of Deflation.

i have some results

outside environment:
foil balloon- 4/4/10 3:00 p.m. to 15/4/10 6:30a.m.
normal latex balloon- 4/4/10 3:00 p.m. to 5/4/10 5:00 p.m.

in the fridge:
foil- 4/4/10 3:05 p.m. to 25/4/10 4:00 p.m.
latex- 4/4/10 3:05 p.m. to 10/4/10

at room temperature:
foil-4/4/10 3:10 p.m. to 4/5/10 7:00p.m.
latex-4/4/10 3:10 p.m. to 20/4/10 7:30 a.m.