I've always bought vynil tints for my mustangs and thought I would try the VHT nite shades this time as you can basically choose how dark you want it. I've seen people sand the lense but I didn't trust that. I cleaned it thoroughly. Prepped the surface with dupli-color prep spray and wipes then wiped try with a microfiber. I applied 3 light coats of the. It's shades about 10 minutes apart. After an hour of dry time my intensions were to wet sand but it actually came out smoother than I anticipated. Next I applied 4 coats of dupli-color clear coat in the same manor. 3 coats light and the final coat thick. Today I will wet sand and buff them to give it a good shine and get rid of any orange peel. All in all they came out so much better than I thought possible