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I am having a hard time making acrylic letters stick. Does anyone
have experience with 3m #4298 adhesion promoter? If so any
feedback would be appreciated.
If you know you will never take them off again, use Super Glue like I did.
So far on for a year with a lot of rain and car washes and no issues.
Mine are not acrylic though, they are SS, not that it would matter I think.
These 2 steps are a must, If done this way you will not have any issues. Also use new tape......
I did this when I first applied my Cyberdine emblems and those babies are welded on. The 3M #4298 on a Q-tip and patience will pay off. I took my time, and they are as permanent as is the sills themselves. Most people who ride in it think the car came from the factory with them.