Not having a SOP16 to DIL adapter board, and having a curl of old FPC on the bench... Well I just had to try the experiment.
So I discovered that if you scrape the FPC across with the knife, instead of along, and not at the end, it cleans off the insulation quite nicely. Made a chip-sized clear patch, soldered the chip onto it. Trimmed the ends to a concave shape. Should have scraped back and front before trimming. Never mind. Found I could melt the back insulation off with the iron. Cut away the bit between the two sides of the IC, cut most of the way between the conductors. Spread out the conductors, trim a bit, solder onto a couple of pin headers. No shorts, yay!
So, tomorrow I get to build with it!