Originally Posted by Sara504
It has rained everyday since I put it on and has been super humid.. Think that has anything to do with it?
Yes, but only because you didn't push it down enough and let is sit long enough. Most likely you have water under the tape.
Take the spoiler off
Clean the spot where it's going to go with water + vinegar mix (I use more water than vinegar)
put spoiler back on with 3m tape
use painters tape and apply it so that it's pulling it down onto the car. Use the tape everywhere and don't be cheap.
Take tape off in a few hours and it should be fine.