The difference starts with the material. Latex is natural rubber tapped from the Hevea tree, stretched into a thin porous wall through which helium atoms slowly escape. Foil is a nylon film with a metallised coating, heat-sealed at the edges and fitted with a one-way valve, so gas leaves only through the seam over time.
Everything else follows from that. Latex floats roughly 8 to 16 hours on plain helium and one to three days with a HiFloat coating, while a foil balloon of the same size stays up for days and often more than a week, and can be topped up with helium and reused. Latex is round, comes in dozens of shades and finishes, and costs little; foil is die-cut into numbers, letters and figures, carries printed artwork, and costs more per piece.
They also age differently. Latex oxidises in sunlight, turning matte and then bursting, which matters a great deal outdoors in Dubai. Foil reflects heat, holds its shape, but is a plastic composite and does not break down in the ground the way rubber does.
- Material: natural rubber versus metallised nylon film
- Float: hours for plain latex, days to over a week for foil
- Shape: latex is round and stretchable, foil is die-cut into any outline
- Price: latex is bought by the dozen, foil piece by piece
- Afterlife: latex biodegrades slowly, foil is plastic but can be refilled and reused
Both materials are used side by side in most of our sets from the catalogue.