OK... I just bought the 303 protectant (white bottle with blue label).

I applied after cleaning the top. Very easy to use. Just spray on and wipe till dry (directions says... you have to wipe till dry). If you get any on the paint, just wipe it off, don't let sit there. That's it. The top feels softer and slick, but not wet.

I'll let you how it holds up when it rains. It also mention to use it every 3-5 weeks. I'll probably just use it once a month during spring, summer and fall. Not sure if my ZR will see snow.

 

I have been using the 303 Protectant for a couple of years. As I understand it, the ultraviolet rays of the sun damage the top more than rain will. Water definitely beads nicely after the top has been treated, but I was more concerned about the top fading. So far the top still looks great.

 

i hope you used the 303 convertible cleaner before you put the arospace protectant on.

 

Yeah make sure you clean it thoroughly to get all the loose dirt and crud off the top first.

I apply 303 by spraying it onto a towel first and then wiping the top with it. It makes for a cleaner application.

 

Been using 303 on my interiors for a few years now. Love it.

 

I use the stuff too on the rubber door and hatch seals... keeps them in great shape.

 

^same here, i've been using it ever since i got my z.