Disclosed herein is a method of forming a photocurable polymer system. The method includes providing a polymer, providing a diaryl iodonium salt, blending said polymer and diaryl iodonium salt, applying the blend to a substrate; and crosslinking the blend. The polymer can be a silicone-based polymer, such as PDMS-ECHE. The polymer can also be ETBN. The blend can be crosslinked by exposing the blend to ultraviolet light, and the crosslinking can be cationic crosslinking. In one example, the wavelength of the ultraviolet light is 254 nm. The blend can be exposed to ultraviolet light for between about 10 seconds and 90 seconds. In one example, the blend is two percent by weight of the diaryl iodonium salt to the polymer.