High‑Barrier PVC/EVOH/LDPE Rigid Sheet – Medical & Pharma Packaging

Shanghai Wallis Technology Co., Ltd. introduces our upgraded PVC/EVOH/LDPE composite rigid sheet, engineered for medical and pharmaceutical packaging where maximum barrier performance, mechanical durability, and sealing reliability are critical. With a three-layer structure—PVC for rigidity, EVOH as the high-barrier core, and LDPE for heat-sealing—this material ensures the long-term stability and safety of sensitive products including pharmaceuticals, supplements, medical devices, and specialty foods.

Material Structure & Technical Specifications

PVC/EVOH/LDPE composite rigid sheet

PVC/EVOH/LDPE Pharmaceutical packaging

Examining Report of PVC PVDC Pharmaceutical Package

COA-PVC.pdf

COA-PVDC.pdf

Key Advantages

Exceptional Oxygen & Moisture Barrier

The EVOH core provides ultra-low oxygen and water vapor transmission rates, protecting sensitive pharmaceuticals, nutraceuticals, and food products from degradation, spoilage, and potency loss. This is particularly crucial for hygroscopic drugs, biologics, and light-sensitive compounds.

Rigid and Durable Structure

The PVC outer layer ensures excellent stiffness and impact resistance, facilitating easy thermoforming into blister cavities or rigid trays, while preventing deformation during handling, transportation, and storage.

Reliable Heat-Seal Performance

The LDPE inner layer guarantees secure sealing with aluminium foil, film laminates, or other packaging materials. The seals are strong, leak-resistant, and compatible with sterilization and high-speed packaging lines.

Chemical Resistance & Safety

The composite resists acids, bases, solvents, and common cleaning agents, making it ideal for pharmaceutical liquids, diagnostic reagents, and lab materials. It is inert, non-reactive, and safe for medical applications.

Customizable to Your Needs

Thickness & Width: Adaptable to different packaging requirements.

Color & Opacity: Tinted or opaque sheets protect light-sensitive products.

Surface Finish & Printability: Suitable for batch numbers, logos, and expiration dates.

Formability: Compatible with both pre-formed pouches and rigid sheet thermoforming.

Sustainable & Cost-Effective Solution

Compared to metalized or foil-based alternatives, PVC/EVOH/LDPE sheets are lighter, recyclable, and easier to process, while maintaining superior barrier and mechanical properties.

Recommended Applications

Pharmaceutical Solid Dosage & Liquids: 

Tablets, capsules, soft gels, syrups, and liquid reagents requiring moisture and oxygen protection.

Biologics & Diagnostic Reagents: 

Proteins, enzymes, and other biologics sensitive to oxidation or moisture.

Vitamins, Supplements & Nutraceuticals: 

Long-term stability for hygroscopic or oxidation-prone compounds.

Medical Devices & Kits: 

Sterile instruments, kits, and consumables requiring rigid packaging and barrier protection.

High-End Food Packaging: 

Nuts, chocolates, or specialty foods sensitive to moisture, odors, or oxidation.

Export or Harsh Climate Packaging: 

Maintains performance in tropical climates, long shipping routes, and varying temperature/humidity conditions.

PVC/EVOH/LDPE Pharmaceutical packaging

PVC/EVOH/LDPE Medical packaging

Pharmaceutical Solid Dosage & Liquids

Capsule packaging

Why Choose WALLIS PVC/EVOH/LDPE High-Barrier Rolls?

Outstanding Oxygen & Moisture Barrier

The PVC/EVOH/LDPE coating significantly reduces oxygen transmission rate (OTR) and water vapor transmission rate (WVTR), keeping pharmaceuticals protected from humidity, oxidation, and active ingredient degradation.

Excellent Chemical Stability

The sheet maintains its integrity and barrier function when in contact with pharmaceutical powders, coatings, and moisture-sensitive formulations. No harmful migration and fully compliant with packaging safety requirements.

Strong Mechanical Strength

WALLIS PVC/EVOH/LDPE sheets offer superior thermoforming performance, allowing deep-draw blister shapes without cracks, whitening, or stress marks. Heat-sealing strength is high and suitable for high-speed automatic packaging lines.

Enhanced Clarity & Appearance

The film remains clear with high optical transparency, providing excellent product visibility for pharmaceutical brands and reducing packaging defects.

Pharmaceutical Material Packaging Line

Customer Cooperation

Customer Group Photo

Customer Group Photo

Exhibition photos

Exhibition photos

Exhibition photos

Customer Reviews

FAQ – Frequently Asked Questions

Q1: Is this material safe for pharmaceutical and medical use?

A1: Yes. All materials (PVC, EVOH, LDPE) are medical-grade, chemically inert, and compatible with GMP production standards. Certificates and testing reports are available upon request.

Q2: Can I request samples for testing?

A2: Yes. We provide sample sheets or small rolls for evaluating heat-seal performance, barrier properties, and compatibility with your specific products.

Q3: Can thickness, width, or color be customized?

A3: Absolutely. We offer full customization of total thickness, layer ratios, width, color, and opacity to suit your packaging needs.

Q4: Is the sheet suitable for high-speed packaging lines?

A4: Yes. The rigid sheet maintains consistent thickness and surface finish for smooth operation on standard blister-forming and thermoforming machines.

Q5: What is the lead time for production?

A5: Lead time depends on specifications and order quantity. Please contact our sales team for detailed quotes and timelines.