Is it possible for a CR lip to be molded to the bumper and not crack under normal use? What kind of "bondo" is used?

 

prob would need fiber glass. I bet the first pot hole you hit it starts to crack.

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If you live somewhere where there are drastic temperature changes, you will have cracking over time with molded lips. I have seen this on molded bodykits where work was performed by excellent bodyshops. Its just nature. Plus, you would have to drive more carefully - why do you want to mold it? Just curious...

 

I have a tiny gap between the bumper and the CR lip that the rubber moulding can't cover.

I am looking more of a plastic heavy duty glue than 'bondo' type paste. I need it to be strong, making the 2 bond as one.

 

Ah ok.. Do you have a Car quest around you? If so get a 2 part glue. glue/ activator . for best adhesion scuff the paint with a red 3m scuff pad so the glue can bite into the paint.

 

Auto body shops have something that we use for plastic repair, for repairing cracks, can't remember off the top of my head what it's called, but it bonds two pieces of plastic stronger than the original piece is, it's stronger than bondo and fiberglass, but takes awhile to sand down to make flush, I'm sure after that you can add some metal glaze over top of it to smooth it out and finesse it a little more. If I can remember what it's called I will let you know. I used this stuff on a bike(zx6r) on several different pieces of the plastic fairings and front fairing works wonders! Ask your body shop if they know what I'm talking about if not, i will try to find the name for it

 

This it?

http://www.ebay.com/itm/3M-8243-Plas...18f40a&vxp=mtr

or this?

http://www.ebay.com/itm/3M-08115-Pan...49398250861252

 

Did you ever figure out why there was that small gap between cr lip and bumper? I've had this and never could fix it. I was about to just buy a new lip and bumper since its bugging me. Was thinking of double side tape on top of all screws. It's mostly on one side. The lays pretty flush

 

There is a small thin rubber gasket that fits between the bumper cover and the spoiler, it's a OEM part which I believe is 71108-S2A-010.

 

There is a product call Fusor, similar to the 3m product you posted, it allows you to plastic weld, and evercoat sells filler you can use, should do the trick. The VW crowd have been doing it to shave their markers forever. also example