Following on from Stephen's request regarding decals I have had quite alot of success with product called Super Cal in kit form manufactured by Micro Format, Inc,Wheeling, IL, 60090.USA and imported to this country Hobbys UK of London http://hobby.uk.com or email :-mail@hobby.uk.com . Look under items Part No:594905 to Nos 594925 this will give all the details required.This is a water slide system and serves the purpose in the restoration of bikes when decals are no longer available .
The point about any fading results is only as good as the quality of the printer or cartridge been used and I' ve have never had any signs of yellowing after using this kit . Ofcourse one can use cling film as a covering but however careful it is applied moisture does creep under .
Hope this is of some help
Doug Smith
North Dorset
England
UK