I recently bought a replica AC Schnitzer front add-on lip spoiler (hand-laid fiberglass). I tried it on and noticed that there is not much contact area between the bumper cover and the spoiler. There are no instructions or hardware that came with the spoiler for installation.
What I'm concerned is, if I use double sided tape, it won't be strong enough to hold it, especially at high speed winds. There is not much contact surface area at all. If I use screws, it's a no no, gonna look bad! The only choice I have now is to use some kinda permanent glue, like liquid nails or construction grade super strength adhesive (pliable, like caulking).
Does anyone have any experience with this? What kind of glue is best for this application, does it have to be high heat resistant, pliable, waterproof...etc.?