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Ultrex fiberglass: The perfect building material

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Ultrex, a pultruded fiberglass used in Integrity from Marvin windows and doors, may just be the perfect building material. As strong as steel, Integrity is so tough that we cut it with diamond-tipped blades. Perfect for windows and doors, Ultrex expands at the same rate as glass. Finally, the finish is three times as thick as the competition’s and is AAMA-certified. No blistering. No corrosion. No peeling.

Learn more about Ultrex at IntegrityWindows.com or request materials about Ultrex and the Integrity products that use it.