Category: packaging

Why Replace Your Heat-Sealing Hardware When You Can Improve It?

Packaging October 9, 2025

Whether due to specific damage or overall wear and tear, your heat seal tooling will eventually need to be replaced. But what if instead of measuring its lifespan in months to years, you measured it in years to decades? And you don’t have to reinvent the wheel (or in this case, the heat seal bar) to do it.

Continue Reading >>

Silicone Tooling and Your Use Case: An Interview with Matt Snell

Packaging September 19, 2025

Matt Snell is both a salesman and an engineer, an ideal combination for anyone working with highly customized solutions. In his over four years at ISM, he’s worked as a Product Specialist, an Application Engineer, and an all-around expert in silicone tooling. Today, he brings this expertise to bear as we sit down and talk about silicone tooling applications and customization options.

Continue Reading >>

Silicone Rubber Sheet Bonding: What You Need to Know

Materials Packaging Product Spotlights September 5, 2025

As an engineer in the packaging industry, you know that modern heat seal packaging machinery needs the right combination of time, temperature, and pressure to create reliable seals with low scrap rates. You also know that such machinery tends to run fast and hot with little tolerance for downtime.

Continue Reading >>

Soft Dairy & Spoonable Foods Lidding Sealing Challenges

Packaging September 27, 2021

Maintaining the right heat seal parameters requires careful setup and management

Optimized tool design and control allows conductive direct contact heat sealing machinery to create consistent, high-quality seals.

Soft, spoonable dairy and similar foods require processing and packaging machinery that reliably seals a peelable, flexible lid to the rim of rigid plastic containers.

Optimizing processing for a particular production rate is not cost-effective without also ...

Continue Reading >>

Heat Seal Lidding Materials for Soft Dairy & Spoonable Foods

Packaging September 22, 2021

Multi-layered heat sealed lidding for rigid food containers

Optimized tool designs and careful control of conduction-based direct contact constant heat sealing are not enough. Lidding materials, especially the heat seal layer, must be appropriate for the container and the food inside.

The right lidding material choices keep ready-to-use food safe and tasty

Rigid packaging lidding requires multiple laminated or coated ...

Continue Reading >>

Soft Dairy & Spoonable Foods Heat Seal Overview

Packaging September 17, 2021

Sealing this rigid packaging is more complex than one would think

Choosing the right lidding and rigid container materials is not enough. You also need optimized tool design and control to get consistent, high-quality seals.

Spend any time in a grocery dairy section, and you see a tremendous variety of dairy products and variations offered for sale in plastic ...

Continue Reading >>

Some Heat Sealing Frequently Asked Questions

MiscellaneousPackaging Product Spotlights October 23, 2019

There is more to heat seal than just dwell time, temperature and pressure

United Silicone metal bonded silicone sheets.

An introduction to heat sealing. Heat sealing is a critical process used for rigid and flexible packaging of all kinds. Heat conduction or heat transfer sealing uses heated seal heads or sealing bars to adhere, attach or close film to film or film to a rigid container. The results are leak-proof seals for bags, pouches ...

Continue Reading >>