I have 2 pcs. 1) Helmet visor, I've used it both inside and outside the visor. (help outside with bugs and dirt, actually failed) To apply first clean very thoroughly. Then spray and let dry (do not apply in direct sunlight) until completely dry, spread evenly on the visor with the cloth provided. It looks like you have streaks, then take a clean microfiber cloth and wipe it clean. 2) car. Do not put in the sun. rzunimag. Dries quickly and leaves streaks that are difficult to remove, use a strong glass cleaner. I will try to fix and update.