There is a product called DURAMIX that works great, they have different componds, but the only draw back is you have to buy the gun to apply it, I have used on many different plastics and had great results. The type I use is 40/40 thats the compond #, take a grinder or what ever you have acess to and bevel the back side of the plastic and ruff up the surface before you apply it, its also a good idea to find a plastic adhesion promoter to sofen the suface to make a better long lasting repair. If you have a body shop near by you could have them do the ruff repair for a small fee, they should know what DURAMIX is.JM2CENTS!!!! :beer_cheers: