Leak-Proof Sip Lids | 90mm FDA PP Injection Flip-Top
Food-grade disposable cup with custom logo printing available. Contact us for wholesale pricing and MOQ.
Key Features
- Food-grade PP / PET / PLA material
- Custom logo printing up to 6 colors
- Matching lids & straws available
- Factory-direct wholesale pricing
Product Description
Leak proof cup lids designed for delivery. Once the flip-top is closed, the moulded plug seats into the drink hole and stays there — so a cup can travel in a bag or carrier without leaving a trail of coffee behind.
This is the difference between a lid that merely fits and a lid that holds. Because these are injection moulded, the sealing surfaces are dimensionally consistent from the first lid to the ten-thousandth, which is what makes the seal reliable at volume.
Why these leak proof lids:
✅ Moulded plug seal — closes the drink hole properly, not just covers it
✅ Injection moulded — consistent dimensions, consistent seal
✅ Flip-top — one hand to open, one hand to close
✅ Rigid PP — does not flex open under pressure in a bag
✅ Hot and cold capable
What breaks a lid seal at volume
| Cause | What happens | How injection moulding helps |
|---|---|---|
| Inconsistent rim dimensions | Lid sits loose, drinks spill | Moulded lids hold tight tolerances |
| Thin lid material | Lid flexes and pops open | Rigid PP resists flexing |
| Poorly formed plug | Drink hole never fully closes | Moulded plug seats precisely |
| Heat softening | Lid deforms on hot drinks | PP handles high temperatures |
Specifications
| Item | Details |
|---|---|
| Compatible cup diameter | 90 mm |
| Material | Food-grade PP, injection moulded |
| Lid type | Leak-proof flip-top sip lid |
| Temperature range | Hot and cold |
| Certifications | FDA-compliant material, SGS, ISO 9001 |
| MOQ | From 10,000 pcs |
About Yulong Packaging
Dongguan Yulong Packaging Co., Ltd. has manufactured food-grade disposable cups and lids since 2006. Cups, lids and sealing film are all produced in our 10,800 ㎡ Dongguan factory, so fit is verified end to end.
Get Samples
Tell us your cup rim size and delivery requirements — we’ll quote within 24 hours.
WhatsApp: +86 186 8100 1931
