Adhesives for CR-39

CR-39 is another transparent material that has tremendous successes in optical applications. Its opacity in the ultraviolet range and high scratch/abrasion resistance make it a better choice for use in eyeglasses and sunglasses. CR-39 can also resists solvents, chemicals, and heat. CR-39 is also commonly used as the key elements in Solid-State-Nuclear-Track-Detector. Adhesives or coatings for CR-39 are often used for property modification and/or assembly.
Gigbond developed a series of adhesives that can be readily used on CR-39. Refractive index of these products span from 1.47 to 1.55, while viscosities from 150 to 10,000 cP. GB-212, GB-213, and GB-515 are a few examples in this category.