Hey everyone—back again with another quick tip from the team here at NEDC. Today, we’re talking about secondary liners and why they matter when you’re selecting a gasket material.
Let’s break it down.
What Are Secondary Liners and Why Are They Important?
Secondary liners are the release liners used during the converting process—especially when kiss cutting gaskets. The liner type plays a big role in how easily the part releases from the backing, how clean the cut is, and how efficiently we can process your order.
3M 4998: A Balanced Option
Take 3M 4998 for example. It offers a great balance of properties, and it releases easily. However, the liner on 4998 can be harder to kiss cut, which is something to consider if you’re producing intricate or high-volume parts.
Thicker Liners: Easier Kiss Cuts
Now compare that with a thicker liner—you’ll find that it’s much easier to kiss cut, especially when cutting thicker parts. Thicker liners also tend to offer better release performance, which is important during high-speed converting.
3M 4988: The Economical Option
On the economical end, 3M 4988 is one of the most affordable choices. It’s a solid performer, but its release characteristics aren’t quite as strong as the others. For applications where ease of release is crucial, other liners may offer better performance.
Why This Matters
As a 3M Preferred Converter, NEDC has deep experience with a wide range of liners and adhesives. We can help you choose the right combination for your application—especially if kiss cutting is part of your process.
So next time you’re thinking about gaskets and need a liner that releases cleanly and cuts smoothly, think of us—New England Die Cutting.