Article Quick Facts
Why the Sealing Film Matters More Than You Think
For bubble tea and takeaway drinks, the sealing film is the single barrier between a full cup and a spilled delivery bag. A film that does not match your cup material or caliber leads to weak seals, peeling edges and customer complaints. Getting the film right is a small decision with an outsized impact on delivery reliability and brand impression.
PP Film vs PET Film: Match the Film to the Cup
The core rule is to match the sealing film material to the cup material for a reliable heat seal. PET film pairs with PET cold cups: our 90-98mm PET cups work with standard cup sealing machines using PET sealing film. PP film pairs with injection PP cups: our 90/95mm round PP cups are designed for standard sealing machines with PP sealing film.
Film-to-Cup Matching Chart
Use this chart to match your cups, film and machine. All values reflect our standard cup and film compatibility.
| Cup Type | Caliber | Recommended Film | Machine |
|---|---|---|---|
| PET cold cups | 90 / 95 / 98 mm | PET sealing film | Standard round sealing machine |
| Injection PP round cups | 90 / 95 mm | PP sealing film | Standard round sealing machine |
| Injection PP square cups | 92 mm (square) | Square-fit sealing (contact us to confirm) | Square-fit sealing support required |
Round vs Square Cups: A Sealing Difference to Plan For
Round cups (90/95mm) seal with standard round cup-sealing machines. Our 92mm square series (650ml, 960ml) is a distinctive on-shelf format, but square cups require square-fit sealing rather than a standard round seal head, so confirm your machine supports it before committing to square cups.
Custom-Printed Film: A Low-Cost Branding Win
Sealing film is prime brand real estate, since it is the first thing a customer sees when the drink arrives. We print your logo and artwork on both PP and PET sealing film rolls. Because the film covers every cup regardless of size, custom film is one of the most cost-efficient ways to brand your whole menu at once. Contact us for artwork requirements and minimum order details.
Article FAQs
As a rule, match the film material to the cup material: PET film with PET cups, PP film with PP cups, for a reliable heat seal. If you need a single film across mixed materials, ask us to confirm compatibility before ordering.
Our sealing film is supplied for 90-98mm cups, which covers the most common boba and coffee cup calibers. Round 90/95mm cups run on standard cup-sealing machines.
Yes. We print custom logos and artwork on both PP and PET sealing film rolls. Since the film covers every cup size, it is a cost-efficient way to brand your entire menu. Contact us for the specific artwork and order requirements.