Safety eyewear is often used in harsh working environments, so the lenses are usually coated to increase their efficacy and longevity. This coating is more important than you might think and is a key factor in ensuring the eyewear is worn - and protecting the wearer. For maximum effectiveness, lens coatings should offer resistance against fogging and scratching. uvex is the world leading brand in lens coating technology, delivering long lasting anti-fog and anti-scratch performance. uvex lens coating delivers the highest level of optical clarity, even after repeated cleaning.
Coatings can be either:
• hydrophobic (moisture repelling) detergent-based coatings (which can be washed off) or
• hydrophilic (moisture absorbing).
A hydrophobic coating repels moisture which ultimately leads to a build up of perspiration on the lens, which in turn requires cleaning to remove it. Eventually, depending on the quality of the coating, the detergent properties will be washed from the lens, rendering it ineffective.
Hydrophilic coatings can be produced that are permanent and do not wash off. The coating becomes sponge-like, absorbing moisture so that the wearer does not have to take off their glasses or goggles to clear any fog.
uvex offers three uvex supravision® coatings for different applications and environments that call for specific formulations of protection.