Durostone UTR (GPO-3) Polyester Glass Laminate

Durostone UTR (GPO-3) Polyester Glass Laminate


Durostone UTR consists of a fibreglass base reinforced with thermoset polyester resins. It is UL® recognised and the industry standard for flame and arc/track resistant electrical insulation.

Manufactured to provide a combination of high strength, flame resistance and low smoke generation. Available in sheet form and a selection of channel, angle and tube sizes.

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Electrical insulation components for motors, generators and switchgear

High Mechanical Strength for Structural Support


Insulect has created a specification sheet for the Durostone UTR (GPO-3) Polyester Glass Laminate. The tables show the most commonly requested products in the range. Should you require something outside of these parameters, please contact our customer service team.


Low Smoke and Smoke Toxicity


Easily Fabricated

High Voltage Tracking Index

Outperforms Phenolic Grades


Machining & Fabrication

Insulect’s manufacturing capabilities form a key part of the trusted service we offer our customers. Our modern, well equipped facilities work with a wide range of electrical, thermal and mechanical materials – including plastics, composites and cellulose-based products.

We offer short run, specialty or volume based machining and fabrication for almost any application and can produce cut-to-order sheets or finished components. Coupled with our highly-trained and experienced team, we are able to deliver on the most complex of customer requirements.






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