AluFoilSeal Knowledge Library

The BLOG — every article, every collection

Technical notes, sourcing guides and field cases on sealing liners for pharmaceutical, food and specialty packaging. Written by the people who make them, since 2001.

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Case Note: A Cosmetic Oil That Delaminated Its Seal Six Weeks After Filling
INDUSTRY CASES

Case Note: A Cosmetic Oil That Delaminated Its Seal Six Weeks After Filling

A cosmetic oil packed in PET bottles with a PE-sealant induction liner passed every test at filling and failed six weeks into stab

Case Note: A Pharmaceutical Bottle Line That Could Not Hold Seal Without Slowing Down
INDUSTRY CASES

Case Note: A Pharmaceutical Bottle Line That Could Not Hold Seal Without Slowing Down

A liquid oral dose line was running at two thirds of its rated speed to hold seal integrity. The liner was not the problem and nei

Child-Resistant Closures and Induction Sealing: Where the Two Systems Conflict
NEWS

Child-Resistant Closures and Induction Sealing: Where the Two Systems Conflict

Child-resistant closures are designed to be hard to remove, which is the opposite of what an induction sealer needs at the coil. H

What the Shift to Recyclable Monomaterial Bottles Means for Liner Specification
NEWS

What the Shift to Recyclable Monomaterial Bottles Means for Liner Specification

As pharmaceutical and cosmetic brands move from multi-layer to monomaterial HDPE and PET containers for recyclability, the sealing

Paperboard, Foam or PET Film: The Backing Layer Nobody Specifies and Everybody Notices
Product Knowledge

Paperboard, Foam or PET Film: The Backing Layer Nobody Specifies and Everybody Notices

The backing layer of a sealing liner determines total thickness, cap feeder behaviour, printability and moisture sensitivity — yet

Seal Strength Is Not a Property of the Liner — It Is a Property of the Seal
Product Knowledge

Seal Strength Is Not a Property of the Liner — It Is a Property of the Seal

Why peel strength measured on a liner sample predicts almost nothing about production performance, what the four variables of an a

Where the Cost of a Sealing Liner Actually Comes From
Buying Guide

Where the Cost of a Sealing Liner Actually Comes From

A cost-structure breakdown of an induction foil liner — sealant film, foil, release layer, backing, die amortisation, packing and

How to Write a Sealing Liner Specification That Suppliers Can Actually Quote
Buying Guide

How to Write a Sealing Liner Specification That Suppliers Can Actually Quote

The eight fields a sealing liner specification needs, the three that are routinely left out and cause the most rework, and a speci

From Sample to Production: A Realistic Timeline for a Custom Liner Programme
Customization & OEM/ODM

From Sample to Production: A Realistic Timeline for a Custom Liner Programme

A week-by-week breakdown of a custom sealing liner programme — dimensioning, die cutting, first samples, line qualification, compl

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