Dry time is a couple hours. When I did the truck, I left the grill shell off the truck overnight while it dried, and with the Neon grills, I used some string and misc items to keep tension on the pieces overnight.
It dries clear, and you should be able to get it anywhere. Check you local dept stores and grocery stores, or hobby shops.
It's very sticky and messy, but works great and comes off your fingers like rubber cement in a few minutes.
When I first installed my grills, I knew I wanted the mounting to be invisible, so I used a 2 part 5 minute epoxy. That worked well for about a week, but it dries rock hard, and the occasional opening of the hood was enough flex to break the inserts free.
Yes, I did use the same method to attach the lower grill.
Here are all the mounting points you need to remove to get the bumper cover off...
A - To access these 8 expanding plastic screws, you need to lift the hood and remove the corner lenses. Space is extremely limited. They are designed to unscrew, but I just used a special tool to pull them straight out. The tool is pictured below.
B - These are accessed from inside the wheel well, and I used a T25 Torx on them. It wasn't the perfect size, but it worked great.
C - These are more of the expanding plastic deals. Again, I just pulled them straight out.
D - These are push-in style things (love the technical terms here?) that are designed to be pulled straight out. They attach a rubber extension from the bottom of the bumper cover to another cover under the engine. When you are removing these, it's a good time to unplug the fog lights.
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