First time protecting the top, and after 2 years, any factory spray had worn away completely. While some choose to paint it on with a foam brush, I used the 303 Fabric and Tonneau cleaner as described, with a little going a long way. Soft bristle brush in circular motions. Luckily, it wasn't soiled too badly so it washed off easily. The cleaner bottle will last forever, while the protectant can be emptied in just two quick layers. After a day to dry, I taped off the rubber and plastic moldings, vacuumed the top of lint, then sprayed one way until saturated and parked in the sun (70 degrees). Although it say 6-12 hours, mine was dry as a bone after 4. I re-vacummed, then spray the remaining half of the bottle in a perpendicular direction. Wiping it off the paint and glass right cannot be said enough, since it begins to dry very quickly. Some quick-detail wax or Windex will go a long way. Some say it beads water for 3 weeks, and others 3 months or more, and I've even seen a full year. Truthfully, I just want UV protection for the top, versus water protection. I'll keep updated over the next year!