Why We Use a PE Layer in Our PVC/PE/PVDC Films — And Why It Matters

Why We Use a PE Layer in Our PVC/PE/PVDC Films?When I first joined the pharmaceutical packaging industry, I kept hearing the same story:“PVC/PVDC works. Why complicate it?”

But over time, I saw what happens on real blister lines — films that delaminate, seals that fail, products that absorb moisture despite using ‘high-barrier’ material.

So we asked ourselves:
How do we make something better? Not just stronger — smarter.

That’s when we decided to build a new kind of laminated structure:
PVC / PE / PVDC — where the PE layer in the middle does a lot more than people think.

I’ll be honest — PE doesn’t usually get the spotlight. People focus on the outer PVC or the barrier PVDC. But in our experience, the PE core is the quiet hero.

Here’s why we use it:

It bonds PVC and PVDC better. PE acts like a flexible bridge between two very different materials. That bonding reduces the risk of delamination — especially during high-speed forming.

It absorbs mechanical stress. During thermoforming, the film stretches and bends. PE gives just enough flexibility to prevent cracking, especially on deep cavities.

It improves sealing consistency. When you use different lidding materials — like aluminum foil, paper, or PET — the PE layer helps maintain seal strength across the board.

It enhances stability. In humid environments, layered films can deform. The PE core holds the structure together and resists curling.

Since switching to PVC/PE/PVDC film, we’ve had customers tell us, “We finally stopped seeing wrinkles and seal failures on our blister line.”

You don’t just want a film that looks good on paper. You want something that:

Forms cleanly on your existing machines
Protects your product for 12+ months on the shelf
Handles complex cavity shapes without delaminating
Comes with real technical support when you need it

That’s what we’ve built.

We offer coating weights from 40gsm to 120gsm, depending on your barrier needs:

 

PVDC Coating	Recommended Use
40gsm	Standard tablets & capsules
60gsm	OTC meds and moderate barrier
90gsm	Sensitive APIs, enzyme products
120gsm	Exported drugs, probiotics, long shelf life

Whether you’re sealing in moisture-sensitive formulations or prepping for overseas markets, our 3-layer film gives you the performance edge — all thanks to that thin, essential PE layer PVC/PE/PVDC film.

We don’t just sell films — we help solve packaging problems.

Want to test how our PE layer improves seal strength on your line?
Need to compare WVTR across barrier grades?
Curious if 60gsm is enough or if you should step up to 90gsm?

Let’s talk.

Contact us and tell us what you’re packaging.
We’ll send PVC/PE/PVDC film samples, data sheets, or help you run a test on your machine.

Because at the end of the day, a stronger middle layer means a more stable outcome — and that’s exactly what we aim to deliver.