Inside the Can: EPOXY vs BPANI Liners Explained

alna-packaging-aluminum-cans-bpani-epoxy-difference

When you’re choosing a can for your product, the "liner" is arguably just as important as the liquid inside. This thin interior coating is the only thing standing between your beverage and the raw aluminum, ensuring the flavour stays exactly how you intended.

Currently, there are two primary options for can liners: traditional Epoxy and the newer BPANI (BPA Non-Intent). If you’re deciding which one to spec for your next production, here is a practical look at how they compare.

At a glance

Aspect Epoxy Liners BPANI Gen 1 Liners BPANI Gen 2 Liners
Material Composition Epoxy resin (contains BPA) Acrylic-based, BPA-free BPA-NI Polyester or Modified Resin
Barrier Properties Excellent barrier against spoilage and flavor protection. Effective barrier properties. Comparable to traditional epoxy liners in effectiveness.
Durability and Corrosion Resistance Highly resistant to "aggressive" or high-acid liquids. Durable High durability and corrosion resistance
Health Considerations Contains BPA; fully legal in Canada; requires warning in CA. BPA-NI; may contain Acrylic or Styrene. BPA-NI; Styrene-free; globally compliant (EU).
Generational Development Long-established, widely used in various can sizes Introduced post-2015 as a BPA-free alternative Newer innovation, closer to epoxy liners in reliability

In summary - Epoxy liners remain as the industry standard, renowned for their robust barrier properties and durability. They're a reliable choice but have faced scrutiny over BPA concerns. BPANI liners, especially Gen 2, offer a BPA-free alternative, closely matching the reliability of Epoxy liners without the BPA-related health concerns. Gen 1 liners, while BPA-free, include acrylic and Styrene, which may raise other considerations. Ultimately, the right choice depends on your beverage’s chemistry and your target market.
‍


So, if BPANI Gen 2 liners seem to check all the boxes, why isn't everyone using them?

The answer comes down to a mix of industry habits, cost considerations, and regulatory landscapes.

While BPANI Gen 2 is a more recent innovation that addresses BPA concerns, they are still gaining ground in the market. Traditional Epoxy liners have a decades-long track record of reliability and are often the most cost-effective choice for local distribution. Many manufacturers continue to use Epoxy because their production lines are already optimized for it, and it remains a safe, legal option in many major markets including Canada and most of the US.

Are Epoxy liners being banned in California?
As of now, California hasn't outright banned Epoxy liners in aluminum cans. However, the state requires clear labeling if BPA is present in packaging materials, leading many companies to opt for alternatives like BPANI liners to avoid potential consumer concerns.

Are Epoxy liners being banned in the EU?
Yes, under Regulation (EU) 2024/3190, the European Union has officially banned the use of BPA in food contact materials, including the interior coatings of beverage cans. While there is a phase-out period (running until July 2026 for most products,) the ban officially took effect in January 2025.  So if you plan to export your beverage to Europe, you must use BPANI liners.

Contact Us >Back to All Articles

Related Products

Latest News

The Invisible Specs: Aluminum Cans and Ends for Pasteurization and Retort - You cannot tell them apart by looking at them, yet using the wrong one can ruin an entire production run.

See You at ACBC and AMBQ 2025 + Giveaways - We’ve got two more shows lined up before the year wraps up - ACBC in Red Deer and Microbrasseries du Québec (AMBQ) in Québec City.

Full Aperture Can Ends in 2025 - It might come across as being unique just for the sake of it, but it actually opens up real possibilities for a more diverse range of drinks to be packaged in a can.

Tariffs & Your Cans and Ends Supply: What We Know (Today) - You don't have time to study international trade policy, and neither do we. But this stuff impacts all of us.

Should I Go for Slim/Sleek? - After all, they're both "slimmer" than Standard. But what’s the real difference? And how does this impact your product, packaging, and production?

Digitally Printed Cans in 2024/25 - Technically, we shouldn’t be posting about something we’re not fully ready, but it’d feel like we’re ignoring the obvious if we didn’t address this AI-level hype.

2024 Fall Tradeshows - we’re getting ready for two major tradeshows to close out the year - BC Craft Brewers Conference (#BCBeerCon) and Ontario Craft Brewers Conference (OCBC).

Cardboard Can Carriers Products & Application Guide - It’s like the classic “fast, cheap, good” iron triangle - it's difficult to have it all, but sacrificing quality isn’t an option.

Canada’s Single-use Plastic Ring Ban - Plastic six-pack rings are phasing out. Find sturdy, eco-friendly alternatives that won't fall apart.

Inside the Can: EPOXY vs BPANI Liners Explained - Let's discuss the two most popular liners.

Can End Deep Dive: B64 vs CDL - Let's explore the two most popular can end formats and see how they stack up.

The Age-Old Debate: Traditional vs. Digital vs. Shrink-Sleeved Printed Cans - Navigating MOQs, lead times, and unit costs.

Shrink Sleeved Cans in 2024 - With digital printing offering the same perks, why do shrink sleeves still in the game?

The Finish Line: Exploring Matte, Gloss, Tactile, and Retort - Let's discuss the different coatings and how they can fit your cans.

The Making of a Can