Sail Boat Repair: NSR resins can be used for repairing gelcoat and fiberglass equipment with significant advantages over traditional gelcoat repair products. NSR resins will cure at cold temperatures as well as it does at high temperatures. When it gets cooler than 50°F, the cure time for traditional gelcoat repair materials can greatly increase. With NSR resins, you can still cure the resin in 30 seconds if it is 28°F or 110°F. NSR resins do not have a noxious odor typically associated with other resin products. NSR resins require no mixing since they are single component, light activated material.