i did use urethane glue for the bumpers. i used all SEM glue that you squeeze through the tubes by the gun. they one tubes i used for the body panels were $24 a tube and the urethane glues where $31 a tube. it was bit pricey. deffinatley not doing a dark color though and the body work will be done perfect. no scratches i gurantee that. its not getting painted until next spring so everything will have its time to sit and harden fully. then after its all up in primer over winter, if anything cracks for some odd reason, i have time to fix it! everything is coming along pretty good except for these dang rear bumper pieces. to tell the truth, i myself was never a fan of this kit either, but i wanted something that not most eclipse's have, alothough there are some out there that have it. now that i have it mostly all on, i love the kit, lol. with the molding on the bumper in the front, when i had my blitz urethane bumper, i had to fill some dings in it from when it was cut or whatever and i used flexible filler and putty made by the same company SEM and it flexed all the time from being so low and i actually rear ended a old lady once and it never cracked out. all the pieces are deff on there good and should never come off ... hopefully ...! im liking all the comments and everything so far guys, thanks! thanks for the confidence too, its not easy doing everything like this by yourself!