The honest answer is that they do different jobs. Latex is cheap enough to buy in dozens, comes in every finish from pastel to chrome, and is what garlands, arches and ceiling fills are made of. Its weakness is float time: filled with helium alone it stays up for roughly 8 to 16 hours, extended to one to three days with a HiFloat coating.
Foil is the opposite. One balloon costs more, but it keeps helium for days and often over a week, survives Dubai heat far better than latex, and can be a number, a letter, a heart, a cartoon character or a printed message. It is also the safer choice around toddlers, who cannot bite a piece off a foil number.
In practice the decision is made per element. If the balloon has to say something, be a shape or last past tomorrow, take foil. If it has to fill space in a colour, take latex.
- Choose latex for garlands, arches, ceiling fills and large volumes of colour
- Choose foil for numbers, letters, characters and printed messages
- Choose foil when the decor must survive several days or outdoor heat
- Choose latex plus HiFloat when you want volume that lasts into the next day
- Combine both: a foil focal point surrounded by latex is the usual solution
Both types sit side by side in the catalogue, so a mixed set is easy to assemble.