Mylar vs Foil
In sourcing language, mylar balloons and foil balloons usually refer to the same category: metallic-looking film balloons that are heat-sealed into shapes. True Mylar is a polyester brand name, while factories usually quote laminated film.
Wholesale Formats
Popular formats include number balloons, letter balloons, heart and star shapes, mini air-fill shapes, and custom seasonal shapes. Existing shapes are faster and cheaper than full custom tooling.
Customization and Packaging
Custom mylar balloons can use existing shapes with new printing or fully custom die-cut shapes. Retail packs may need header cards, barcode labels, warning text, and inflation instructions.
Quality Checks
Check valve sealing, seam strength, print alignment, inflated shape, pack count, and destination-market warning labels.