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Thermal Insulating Film, 420mm x 297mm x 6mm

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RS PRO GPO-3 Polyester Glass Sheet

RS PRO brings you the GPO-3 polyester glass laminate sheet, this laminate sheet is glass-reinforced thermoset polyester which has been specially designed to be the perfect material for tasks that requires exceptional strength, rigidity and durability. This polyester glass sheet, with its excellent electrical properties, compressive strength and minimal water absorption, has been manufactured by RS PRO to be suitable for almost any environment. Due to its durability and stiffness, it has many different uses and the polyester glass is ideal for machining.

Features and Benefits

  • The glass sheet has excellent electrical insulation

  • This polyester glass has a fantastic temperature range up to 160°C

  • The glass sheet has exceptional mechanical properties

  • Engineered to NEMA GPO3 standards and UL94 V-0 to ensure flame resistance properties in the glass

  • High strength, dimensional stability and impact resistance means that the glass is ideal for a variety of harsh environments

  • Has excellent track resistance giving it great electrical insulating properties

  • Sheet size of 420 mm x 297 mm

  • The thickness of 6 mm giving this a low profile whilst ensuring its impact resistance


The RS Pro Polyester glass with 18 kV/mm electrical strength in air and 23 kV/mm electrical strength in oil. The sheet size of this Polyester glass is 420 x 297mm with 500 V IEC track resistance.


Excellent electrical insulation
Good temperature range up to 160°C
Excellent mechanical properties
Flame retardant and UL rated

RS PRO is our family brand to go-to and brings you a wide range for high-quality and high-value products to support your project. Trusted by engineers all over the world, every part of every RS PRO product is always rigorously tested against demanding industry standards. We are only giving the RS PRO seal of approval if we are confident of their exceptional quality, which means you can be convinced too.

Maximum Operating Temperature+160°C