Prymol Etch Primer is suitable for use with plastic and metal surfaces, it also allows the use of iron on adhesives, paints and many other adhesives.  Prymol is ideally suited for strengthening overlap bonds, preventing the lift that can allow fuel seepage into seams.  It also provides a better base, allowing paints and adhesives to adhere better.  Excellent for plastic canopies, wheel spats and cowlings.