Balloons expand in heat and contract in the cold. Slightly under-inflate balloons if they will be used in warm environments to prevent popping.
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These have a shiny, metallic finish and can hold helium much longer than latex. However, they are sensitive to temperature; extreme heat can cause them to burst. Balloons expand in heat and contract in the cold
Using balloons of different sizes (e.g., 5", 12", and 18") adds depth and visual interest to garlands and arches. they are sensitive to temperature