I just applied some 303 Fabric Guard to my 2016 convertible and thought I'd share my process. Basically I turned on ignition, then pressed the top down button, but only to open the top about 2" from the windsheild. Then I placed some old bed sheets under the top and over the side windows and across the trunk, tucke under the body panels. This way any overspray was kept from the body paint surfaces. Also I found that covering the rear window with 12" kitchen plastic wrap sticks to the glass and pretty much matches the height of the window glass. Once the spray dries for a bit you can peel off the plastic wrap and remove the bed sheets.

 

Fancy bed-sheets! Nice job.



BUT:

I just lay towels near the bodywork and windows (yes, close the doors on those, to hold them).

If you wipe off the fabric protector quickly, it comes right off the paint if you 'miss'.

+++++++++

The less time you invest, the more often you will apply the protectant.

 

I hear ya, but since I spent $1400 on a full body ceramic coating, I'm a bit paranoid!

 

303 is good stuff...I used the vinyl version on my S2000. Its definetely a messy job if you don't take the preventative masking measures like you did.

 

Wow, I just did mine yesterday! The first time I did it years ago I sprayed it, which I vowed never to do again. This time I used the @Mueller method detailed in 2016: https://www.jaguarforums.com/forum/f...0/#post1560203

I ended up taping everything with blue tape and painting with a brush to avoid having to spray. The fabric is thirsty and soaks the first coat of the 303 quickly, so it is not as easy as it sounds. Also it goes on with a white/gray foamy appearance which may be concerning at first, then becomes transparent.

Took 1-2 hours. Use gloves and a well-ventilated area. That stuff smells pretty toxic and will linger in the interior for a while.

 

I do no masking. I open the roof an inch or two, then carefully use a paintbrush to apply the sealant rather than spraying it. I try to do it yearly, though I occasionally miss a year.

 

I have tried both spray and brush and, for me, the brush was the best. Takes a little longer but no overspray concerns.

 

I also learned something important from doing this.

I left the windows down overnight to air out the toxic smell, locked the car (ironically to prevent battery drain), but left the keys in the garage 5 feet away from the car. No illuminated red triangle.

This morning I have a low battery warning - it went from 13.8V 100% SOC to 11.6V 20% SOC overnight with the low battery warning. Having the keys near the car even when locked drained my battery!