One feature of Shorts aircraft was that many or most were built with yellow compound between all faying surfaces, perhaps a hangover from Sunderland practice? An ARB surveyor told me that corrosion was never a problem with Shorts machines. And for all the Belfast's faults, isn't it odd that a commercial company was able to make serious money from operating it on world charters?
Not much Yak sh*t used these days as it has a water content, PRC tends to get used.