building up a urethane bumper

i have a urethane body kit and the front bumper doesnt fit well where it bolts to the fenders... the gap isnt even. would using duramix 4040 work to build it up where it needs to be? i didnt want to use fiberglass or anything like that, because i figured it wouldnt be the greatest, that if the bumper was tweaked at all, it would crack right off. if anyone has any ideas for this let me know. thanks!Nitrous is like a hot girl with an STD. You know you want to hit it, but you are scared of the consequences.

I'm not so sure that the duramix would work so well for you. I have personally never used the stuff, but I know what it is. If you could get us a pic it would help but have you thought about using spacers or maybe fabbing some brackets to help with fit? Not sure if it would work for ya, just a suggestion.Nothing is impossible!

I would actually recommend SEM products any day over duramix. sem has been a long time underdog and I have never had a problem with it, where as I have seen duramix fail. but what ever you do do not mix from different brands!