Maximize Efficiency and Durability with Glastherm®

Glastherm® is one of our most popular products, and it's easy to see why. This high-performance, fiberglass-reinforced composite material comes in various grades, offering versatile solutions for a wide range of applications.

As part of Red Seal Electric Company’s commitment to providing high-quality fabrication solutions, Glastherm® stands out for its efficiency, reliability, and economic value. Its engineered design ensures your equipment runs smoothly while minimizing energy consumption and wear. Glastherm®’s cost-effectiveness comes from its durable design, which ensures a longer lifespan, meaning less frequent replacements and reduced downtime for maintenance

As a composite material, Glastherm is used to improve energy efficiency, protect equipment from damage, and maintain stable high-temperature conditions in a wide range of applications. Some common uses of this popular product include

  1. Insulation for Injection Molding Machines
    Glastherm® minimizes heat loss and ensures uniform temperature control, significantly reducing energy consumption in injection molding processes.

  2. Thermal Barrier for Extruders, Die-Casting Machines, and Presses
    Serving as an effective barrier between hot surfaces and colder components, Glastherm® increases the longevity and efficiency of high-temperature industrial equipment.

  3. Electronics Manufacturing
    In processes like PCB lamination, Glastherm® ensures even temperature distribution, critical for the production of high-quality electronic components.

Compared to traditional materials, Glastherm® offers superior thermal control at a lower cost, providing unmatched value for industries that require long-lasting, high-temperature solutions.


There are a variety of Glastherm® materials available through Red Seal Electric Company including:

  • Glastherm® HT200: A specially engineered glass-fiber reinforced composite that is extremely strong, resistant to high temperature, and boasts a long service life. 

  • Glastherm® HT220:  A thermal insulating sheet that combines low thermal conductivity with high compression strength.

  • Glastherm® HT250: A thermal insulating sheet with superior strength and heat resistance for applications with continuous use temperatures up to 550ºF. Ideal for hydraulic, wood, and tire presses.

  • Glastherm® S: A general-purpose insulating sheet offering an economical combination of thermal and physical properties. Well-suited for the rubber molding industry.

In addition to Glastherm® products, Red Seal Electric Company offers a comprehensive range of composite materials designed to meet the needs of any industry. With over 70 types of composite insulating materials in stock, our team of experts is here to help you find the perfect solution.

Send us a message to get started.

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