Re: $5 Dollar Front Lip
If the 3m tape will not work, wrapping will not adhere either.
You are going to need to get a hold of body shop level chemicals that are not always readily available 'over the counter' per say. Talk to a local body shop and they can either get you squared away with some chemical stripper like Ackersol (SP) or at least clean up the part for minimal cost...
I would ship you some, but this stuff is horribly combustible.