There's a clear removable coating on one side and a blue removable coating on the other side, so which one is supposed to touch the rubber?
1528843
Remove the blue film and affix "that" side with glue to the tube, tire, etc.
1351722
Sorry, i wont be able to help you. Because, I bought not this model. It's blue and gray rubber ones.
448994
I put the rubber one on first and then the hard one. I just push and pull the rubber after that until it fits perfectly.
181018
No, it shouldn't mess with it. At least that I could tell. Its a thin not noticeable coating.
1263374
This case is a blue hard case with a thin layer of rubber coating on the outside.
1561764
Pull the rubber off completely. On the plastic there are three tabs pull the top on then do each side
857474
I don't have that part handy (as I didn't use it), but I'm fairly certain it was adhesive. (Edit: Actually, I remembered once I saw the other commenter's answer; they're right: it's both, but adhesive is involved.)
986300
The blue color is the lining that you have to peel off. Underneath the blue lining is clear plastic.
741773
The Blue part is hard plastic. The grey part is rubber. No silicone involved.
2008169
Sticks on, just tried to peel it off, doesn't appear to want to come off, likely residue to clean off. ;)
2049842
As the other comments state, you just pop it off. There's a plastic piece that the rubber is connected to. It snaps off straight back and you can just apply the other piece.
2143636
It's rubberized. Kind of a very small diamond plate finish on back. It's not slippery , but not super sticky either. I love mine.
594470
Adhesive backed, part that touches floor is nonskid just by being the type of rubber it is.
1616813
It is in two parts, the inner part is rubber suabe and the second covering the rubber is hard plastic. The plastic covers behind, left and right, the corners are rubber.
1040296
I ordered the black rubbery one and that one is holding up very well, no scratches at all. Don't know about other colors though...
137072
It's not slippery. The blue part It has almost a "soft" feel to it. The black just feels like a harder sturdier rubber. The blue part is also detachable
1351852
The sticky coating is silicon rubber. If the bulb glass shatters it will be held together safely by the coating instead of spreading glass everywhere. The coating feels creepy but it is a good thing.