What is trivex impact-resistant?

In 2001, PPG Industries created a new purpose for a breakthrough plastic technology called Trivex. This urethane-based pre-polymer substance has three primary benefits for eyeglass lenses. That was all I wanted to say about Trivex vs polycarbonate. Both materials are sufficient for providing an excellent optical experience to the users.

• Most of these qualities make CR39 an inexpensive option that has a higher impact resistance than glass, without compromising on quality of vision.
• This aspect makes Trivex a fantastic option for sunglasses, too.

Can you envisage an optical business attempting to survive today by offering only glass or CR-39 lenses, the most well-liked materials from the 20th century? Trivex’s unique mix of optical and performance characteristics makes a persuasive case that it’ll become the benchmark against which all other lens materials will undoubtedly be judged in the 21st century. Trivex lenses come in handy for rimless glasses where small holes are drilled to add the glasses to the frame. Thanks to trivex lenses’ phenomenal tensile strength they’re less likely to crack at this connecting point compared to other lens materials. Eyeglass lens created from polycarbonate was launched in the 1980s to cater to the demand for lightweight, impact-resistant glasses. Although more expansive than traditional glass lenses, polycarbonate lenses offer durability, UV protection, and better clarity of vision.

Because the liquid is baked it sets to create the lens more uniformly than the injection molding process used to create polycarbonate lenses. Polycarbonate is not only more affordable but additionally highly shatter resistant, that makes it ideal for used in safety and sports eyewear. It is lighter than standard plastic lens material and features the best impact resistance of any lens material, bar none.

• However, these lenses are produced with a urethane-based monomer in a cast molding process.
• Virgin poly had not been very scratch resistant, and appropriate coatings needed to be developed to ensure optical consumers will be satisfied with their day-to-day handling of poly lenses.

Like polycarbonate lenses, lenses made of Trivex are thin, lightweight and much more impact-resistant than regular plastic or glass lenses. The lens material known today as “Trivex” includes a really interesting history. Its scientific roots are heavily embedded in the United States military, with applications ranging from helicopter windshields, transparent body armor, and fighter jet canopies. It wasn’t a long time before these scientists realized that the extreme impact resistance in conjunction with its fantastic optical clarity and ultra-lightweight properties would ensure it is a best-selling optical lens.