Custom Heat Seal Solutions for Food Packaging

ISM and United Silicone dual branded logos.

The proper packaging tooling helps you get the reliable seal quality and production volumes you need

When it comes to the packaging industry, achieving a reliable seal quality and consistent production volumes is of utmost importance. Proper tooling is essential in ensuring that these goals are met.

At Industrial Specialties Mfg. (ISM), we have a comprehensive understanding of the importance of high-quality packaging tooling. As the master distributor for heat seal silicone rubber sheets and custom heat seal tooling from United Silicone, we offer our customers access to superior products that meet their exact needs.

Our United Silicone chemically bonded materials are engineered to withstand high temperatures, up to 550°F, and surpass many industrial heat seal materials in their ability to conform to surface variations and contamination. These materials are expertly designed to withstand the temperature, pressure, and dwell time requirements of heat seal and packaging tooling applications, ensuring reliable and consistent results.

Through the utilization of our heat seal silicone rubber sheets and custom heat seal tooling, our customers are guaranteed products that are rigorously tested and proven to deliver outstanding results. With our unwavering commitment to quality and extensive expertise in the packaging industry, we are fully dedicated to helping our customers achieve their packaging goals and ensuring that their products are properly sealed and protected throughout transportation and storage.

 

A color photo of part of a typical grocery store dairy isle showing a sampling of food and beverage packaging.
Typical grocery dairy aisle

The Time Saving Value of Customization

1

Experience less downtime with quick and easy-to-change mounting systems. Faster and easier changeovers mean less disruption and more efficient production lines.

2

Customization means a precision fit for your application. No more need for Teflon® tape retrofitting. Save time and get the close tolerances needed for reliable, airtight packaging seals.

3

Eliminates the need for messy and unreliable adhesives and lasts up to seven times longer. Just replace the custom mounts and go. No more sticky, gooey messes slowing you down.

A color photo of a custom heat seal silicone bonded metal holding fixture for rigid and semi-rigid packaging.
Rigid packaging support fixture

 

Support and Part Holding Fixtures

Typical uses include blister nest or anvil support for sealing rigid and semi-rigid containers like trays, cups, tubs and clamshells.

  • Customization means a perfect fit for your application. 
  • Save time you would have spent cutting and retrofitting silicone due to its precision fit to your application.
  • Help ensure strong, airtight seals for both rigid and semi-rigid containers.
  • Heat seal rubber that lasts up to seven times longer - replace the custom mounts and go.
Seal Heads

 

Cup type rigid package with high temperature silicone rubber bonded lidding heat seal heads.
Cup with lidding heat seal heads

Typical uses include sealing trays, tubs, cups, clamshells and skin packs.

  • Precision customized sealing heads ensure seal integrity by providing uniform heat sealing pressures and temperatures.
  • Magnetic mounting blocks make changeovers fast and easy and reduce downtime.
  • They are made using high temperature, high heat-tolerant silicone suitable for multilayer films.

 

Rollers

Precision rollers made of high temperature silicone rubber bonded to metal cores.
Silicone rubber bonded metal rollers

Typical uses include film feeding systems and roller drum heat seal systems for bag, pouch, rigid, semi-rigid and other packaging sealing.

  • Exceptionally durable - made with a proprietary manufacturing process that chemically bonds the high temperature silicone to a metal core.
  • Custom rollers allow quick changeovers because the rollers match your machine's mountings.
  • Replacement is a breeze,  keeping machinery running at its optimized settings.
  • Precision ground roller surfaces without meeting points or seams deliver consistent, reliable seals.

 

Custom heat seal sealing bars and three styles of flexible packaging and pouches.
Flexible packaging with heat seal bars

Seal Bars & Jaws

Typical uses include bag sealing, form-fill-seal (FFS) units and pouch machines.

  • Thermally conductive, high-temperature silicone seal bar assemblies provide superior sealing performance.
  • Crowned design and precision tolerances eliminate leaks and create consistent, airtight seals.
  • They are made using high temperature, high heat-tolerant (550°F) silicone suitable for multilayer films.
  • Teflon® bonded silicone option for an enhanced release surface without the need for Teflon® tape retrofitting.

 

 

Talk to a rep


We're here to create the perfect heat seal tools for your application

A color photo of both unbonded and silicone-to-metal bonded high temperature silicone rubber sheets.

All customized products are made to order at our manufacturing partner's United Silicone facility in Lancaster, NY. 

Use the form at the top of this page to contact us and ISM will follow up with you to discuss your needs today.