Why Ultrex Fiberglass?
Ultrex is a patented pultruded fiberglass material pioneered by Marvin.Infinity® replacement windows and doors are made from Ultrex fiberglass – a pultruded fiberglass material so strong and durable it is superior to other window materials. Best of all, it makes Infinity products virtually maintenance free.
Ultrex Fiberglass are 8 times stronger than vinyl products. The Ultrex strength keeps each window or door unit square, true and weather-tight over time.
Ultrex Fiberglass is completely low maintenance. Infinity windows and doors never need to be scraped, sanded or painted. Once your units are installed, there is virtually nothing left for you to do except enjoy the view!