A lot of trial and error! Prototype after prototype, testing for everything – lateral compression, vertical compression, transport simulation… you name it. We really put these caps through our (admittedly very stringent) standards.

 

Working closely with our production partners in France, we spent months and months just modifying and improving. Every single test taught us something new, and each iteration got us closer to a plastic-free cap that matched our performance expectations.

In many ways, the breakthrough came when we cracked the compatibility challenge – ensuring our new cardboard lids worked with our existing aerosol filling lines. That meant no costly line modifications, and no production delays for our clients.

The results speak for themselves. Our cardboard aerosol can lids are:

• 100% recyclable
• Temperature resistant
• Drop-test approved
• And use two times less carbon than their plastic equivalents

What started in 2023 as a project for 2 million units has grown into a market of 12 million units today.

That growth delivers real environmental wins.