I did my bumpers myself, im no expert but:
- I smoothed the bumpers down a bit using medium sandpaper
- a coat of plastic primer
- fine sandpaper to smooth the primer (till it was as smooth as a babys bottom, lol)
- Some coats of FIAT Verde Stelvio (i.e. Green)
- Some coats of Halfords lacquer
The result was very good, but not amazing, definatly worth it tho.
I just used my garage and a £9.99 workmans table from Wickes to rest the bumper on (NEVER HAVE STUFF YOUR PAINTING ON THE FLOOR!, TRUST ME)
"Spirito di Punto"