As Ken K. demonstrated on Danrc30's car, the surface you want to stick to must be *VERY* clean. Especially if you use cosmetic chemicals (like armor all) on the area. A quick swipe with alcohol will not remove the layers ofsilicone (I think that's what it is) from the bumper. If you have already tried to stick the letters on a dirty bumper, you will need to replace the tape on them. Contact Rob to see what flavor of tape he uses. I don't remember what chemicals Ken used on Dan's car so hopefullyone of them will send you that information, but I can tell you the two of them were working on the door sills for a good 10-15 min's cleaning all of the silicone off until the black plastic was dull. After the job is done, you can re-coat the area with your favorite shine agent. -----Original Message----- From: Delorean17@xxxx [mailto:Delorean17@xxxx] Sent: Monday, February 18, 2002 11:41 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] Intalling Bumper Letters HI List, Today I went into storage to install the New stainless bumper letters from Gradys. I cleaned the bumper with alcohol but the letters would just not stick. It was about 65 inside so I dont think it was too cold. should I use 3m emblem glue? I have used that for moldings in the past and it worked well but is there anything better? thanks David #6286-waking up this weekend