The power of Ultrex® Fiberglass
STANDALONE STRENGTH
The foundation of Infinity from Marvin windows, our proprietary Ultrex material is made from millions of fiberglass strands, taking the ordinary and making it extraordinary.
Cleveland
16900 Bagley Road
Cleveland, OH 44130
Columbus
1771 Westbelt Drive
Columbus, OH 43228
© Infinity Retail, LLC
Backed by over 100 years of innovation with Marvin
Cincinnati
12098 Champion Way
Sharonville, OH 45241
Toledo
13744 Ballard Drive
Bowling Green, OH 43402
Engineered to outperform
Endures unlike any other
POWER OF NUMBERS
From ordinary to extraordinary
8x
3x
Ultrex is 8x stronger than vinyl
Built to last, Ultrex fiberglass delivers more expansive views and performance that stands up to the test of time.
Ultrex is 3x stronger than Fibrex®
Made with 100% fiberglass, Ultrex is even stronger than the wood/vinyl composite used in other replacement windows.
Start your transformation
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Ultrex vs. vinyl
Over time, vinyl warps and shifts, making it difficult to open and close your windows. The strength of fiberglass ensures they perform as smoothly on day 10,000 as the day they were installed.
Ultrex vs. wood
While classically beautiful, wood requires endless maintenance and care. Virtually maintenance-free Ultrex can be paired with stainable, paintable EverWood® interiors for a classic wood look without the upkeep.
87% less expansion
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Maintains leak-proof fit
Expanding less than both vinyl and Fibrex® , Ultrex frames stay tight and true to your glass panes, maintaining an energy-efficient seal year after year.
3x thicker finish
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Finished to last, beautifully
Dent, chip, scratch, chalk, and fade resistant, our proprietary acrylic finish is 3x thicker than others on the market, delivering a sleek, smooth look that stands up to the test of time.
Withstands 285°F
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Weathers the extremes
The strength of Ultrex combined with our proprietary acrylic finish means your frames can resist warping, bending, flexing, and fading — even in the most extreme conditions.
How our strength stacks up
Made with 100% fiberglass versus the blend of vinyl and wood fibers used in Fibrex®, Ultrex protects the integrity of your home with superior bend and flex resistance. This strength is measured in KSI. For context, 1 KSI is equivalent to 1,000 PSI. The graph shows how these materials stack up under pressure.
Stunning, inside and out
Expand your view
With more strength per square inch, Ultrex delivers expansive views with slimmer profiles
Customize your style
A range of timeless finish options can also be painted to complement your home without compromising the protective, low-maintenance fiberglass material.
HOW WE DO IT
Harnessing the strength of fiberglass
Raw fiberglass strands
Millions of thin but mighty glass cables are saturated with meticulously crafted resins.
Pultruded fiberglass
The saturated strands are pulled through a heated die to create the Ultrex material.
Smooth acrylic finish
Ultrex is coated with a proprietary acrylic that delivers an impossibly smooth, itch-free finish.
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Ultrex vs. wood
While classically beautiful, wood requires endless maintenance and care. Virtually maintenance-free Ultrex can be paired with stainable, paintable EverWood® interiors for a classic wood look without the upkeep.
Ultrex vs. vinyl
Over time, vinyl warps and shifts, making it difficult to open and close your windows. The strength of fiberglass ensures they perform as smoothly on day 10,000 as the day they were installed.
Customize your style
A range of timeless finish options can also be painted to complement your home without compromising the protective, low-maintenance fiberglass material.
Expand your view
With more strength per square inch, Ultrex delivers expansive views with slimmer profiles