Stoneguard or ??
Thanks Tom
The front flaps do serve a purpose in partially protecting some of the bodywork from stones, and you couldn't reasonably cover this area with Scotchcal. The rear flaps, however, really only protect the bottom edge of the rear bumper, and you COULD cover this area with the Scotchcal material.
I watched the tech install the Invisishield on my A4 (actually, helped him). This is the 3M Mylar film sold under a bunch of different names. Key things I noticed were:
1) he wet surfaace using a water/alcohol mix
2) laid film on water/alcohol, floated it into place.
3) squeegied water out with what looked like a rubber triangular scraper with 2-3 layers of paper towels on it. This contoured to surface, and pushed ALL the water out.
He acknowledged it took him a lot of practice (on customer cars!) before he got competent - esp on curved large surface areas.
2-4" width prob. will be less of a PITA to install, but be forewarned. Try to see if can instructions when you buy the stuff.
But, I very much agree that a full "Stongard" or equivalent installation is best left to much experienced professionals. If you are experienced at installing window tint on curved surfaces, then maybe Stongard is within reason to attempt. Before trying to install Stongard on the hood/bumper, etc. of your car, ask yourself if you would attempt self-installation of window tint (one-piece) on the curved rear windshield.




