SankalpA PVC-free liner matters for beverage brands because it removes the plasticisers associated with PVC, lowering the risk of chemical migration into the drink and supporting a cleaner food-safety profile. The liner is the part of the closure that touches the product, so its material choice is a food-safety decision. What a cap liner is covers that component in full. R Vision’s Bev Cap uses a PVC-free TPE liner for exactly this reason.
What a cap liner does
Inside a bottle closure sits a soft liner, sometimes called a wad, that presses against the bottle rim to form the actual seal. It is the only part of the cap in direct contact with the beverage. Because of that contact, the liner material governs two things at once: how well the bottle seals, and what, if anything, can transfer from the liner into the drink. The families in use, TPE, PE foam, EPE and PVC compounds, are compared in bottle cap liner materials.
The problem with PVC liners
PVC (polyvinyl chloride) liners have historically been common, but PVC on its own is rigid. To make it soft enough to seal, manufacturers add plasticisers. Those plasticisers are the concern:
- Chemical migration. Plasticisers can migrate from the liner into the product, especially with fatty, acidic, or long-shelf-life contents. For a beverage that a consumer drinks directly, any migration into the liquid is unwelcome.
- Regulatory pressure. Food-contact rules in major markets have tightened around certain plasticisers, and brands selling across borders prefer materials that meet the strictest of those rules.
- Brand risk. For a beverage brand, a food-safety question about the closure liner is a reputational risk that is easy to avoid by specifying a cleaner material.
Switching to a PVC-free liner removes the plasticiser question at its source. PVC vs PVC-free cap liners sets the two materials side by side.
How Bev Cap uses a PVC-free TPE liner
Bev Cap is R Vision’s aluminium ROPP beverage closure, and it uses a PVC-free TPE (thermoplastic elastomer) liner. TPE is soft enough to seal without the plasticisers PVC needs, so it delivers a reliable seal with a cleaner food-contact profile.
| Feature | Bev Cap |
|---|---|
| Liner | PVC-free TPE |
| Closure type | Aluminium ROPP |
| Size | 28/15 mm |
| Pressure rating | Up to 8 bar |
| Resealability | Pilfer-proof ring stays attached after opening |
| Ring variants | Round Ring, Two Slit, Five Slit |
| Standards | Adhering to USFDA and EU standards |
The PVC-free TPE liner works alongside the rest of the closure: the aluminium ROPP body seals to 8 bar for carbonated and non-carbonated drinks, and the ring stays attached so the bottle can be resealed while tamper evidence remains visible. Full specifications sit on the Bev Cap product page, and closures for carbonated soft drinks covers the wider CSD brief.
Frequently asked questions
What is a PVC-free liner?
It is a bottle-cap sealing liner made without polyvinyl chloride, so it does not rely on the plasticisers PVC needs to stay soft. This lowers the risk of chemical migration into the product.
Why do beverage brands want PVC-free liners?
Because the liner touches the drink directly. A PVC-free liner reduces the chance of plasticisers migrating into the beverage and gives the brand a cleaner food-safety story.
What liner does Bev Cap use?
Bev Cap uses a PVC-free TPE (thermoplastic elastomer) liner, which seals well without PVC plasticisers.
Does a PVC-free liner still seal properly?
Yes. TPE is soft enough to form a reliable seal, and on Bev Cap the closure is rated to 8 bar, covering carbonated and non-carbonated fills.
A PVC-free liner still has to hold gas as well as it holds liquid, and how closures prevent carbonation loss covers what that takes. More closure guides are collected in the learn library. To specify Bev Cap for your beverage line, see the Bev Cap page or contact R Vision.