GPO3 Composite Material: An Advanced Solution for Electrical and Thermal Insulation
The material commonly known as GPO3, REPOGLASS, PL3, and DUROSTONE UPM203 represents an excellent technical solution for applications requiring high electric and thermal performance.
This fiberglass-reinforced polyester resin-based composite material is widely recognized for its insulating properties and its versatility in applications such as electrical and mechanical engineering, as well as industrial automation. Its mechanical strength, combined with safety and durability, makes it an ideal material for the production of technical components operating in severe conditions.
Available in white or red, GPO3 is used as a base for the production of customized items through CNC machining, relying also on customer-provided CAD drawings. Its ability to adapt to both small- and large-volume production runs makes it strategic for a variety of industrial applications.
ISOLMAX offers the ideal matrix for different applications in various formats and thicknesses, as well as those requesting special custom processing. ISOLMAX guarantees the highest quality and attention to both raw materials and customer needs, with thorough checks and ongoing interaction to ensure maximum precision and customer satisfaction, which is our mantra and key to success.
GPO3 Technical Properties – High Performance and Safety
The technical properties of GPO3 place it among the most reliable materials for electrical insulation and thermal protection. Self-extinguishing and halogen-free, GPO3 is classified with UL 94 V0 for the highest flame retardancy. It also complies with UL standards for low smoke density and non-toxicity, which are essential in sensitive environments like railways, where UNI EN 45545 certification is required.
Its electric performance is among the best in its category, with strong tracking resistance and arc-proof behaviour, suitable for high-voltage applications. GPO3 remains stable across a wide temperature range, with operating temperatures between 155°C and 180°C, making it perfect for components exposed to continuous thermal cycles. It also complies with European RoHS and REACH regulations, ensuring the absence of hazardous substances and alignment with health and safety standards.
ISOLMAX Quality for a Wide Range of Customised Products and Processes
ISOLMAX, a company specializing in the production and processing of insulation materials, offers a complete range of semi-finished and finished GPO3 products, guaranteeing high quality standards throughout the supply chain.
Our warehouse includes a wide selection of GPO3 sheets, rods, threaded and shaped profiles in various thicknesses and formats to meet every need. We also manufacture threaded rods and nuts in glass polyester from Ø M5 to Ø M56, with customizable lengths.
ISOLMAX also provides complex components like spools and insulating boxes, glued with two-component adhesives developed for the electrical industry. Processing is handled with precision CAD/CAM technologies and CNC machining centres, or through blanking as needed.
We also offer metal insert integration, dustproof treatments, and subcontracting services, with the same focus on technical excellence.
Our dedication to quality and production flexibility makes ISOLMAX a reliable partner in sectors such as energy, transportation, industrial automation, and power electronics, where insulating material performance is strategic for safety and durability.