Okay, long discussion
here from link
here. The gist seems to be that you have to be careful exactly what product you're buying (a wise caveat), as the contents and their combustion products may be unpleasant. As is often the way with internet stuff, someone chimed in with 'it sounds like cellulose thinners', which I think is wrong: someone who had actually _used_ it said it smelt more like lighter fluid (i.e. naptha). This is also echoed further down the thread by John: "Coleman = Naptha = Panel Wipe' I recently emailed a UK distributor of Panel Wipe to ask them about the chemical composition of the stuff, their response was 'Naptha'".
I'd be surprised (but I could be wrong) if a product intended for surface degreasing that relies on volatility to remove the residue would contain carcinogenic solvents. Of course, the unintended combustion products may be different...
In
Best Fuel? it is noted that one source of 'Panel Wipe' was clearly labelled as 'Naptha', as is Coleman fuel.
I'm sure I remember reading something about two variants of Panel Wipe, an 'F' and an 'S', being fast and slow, i.e. different volatilities. This is also echoed in the long thread, with a suggestion that the 'fast' one may be cellulose thinners.
Okay,
Churchill Paints Panel Wipe HSDS shows no warnings for carcinogenic contents: the only cautionary phrase is 'highly flammable'. Their degreaser, however, is different, and its HSDS includes some 'R-phrases' (Harmful by inhalation, irritant).
I've been looking for a source of 'Panel Wipe', and I'll be looking very carefully at the contents before I buy. I'll endeavour to do some more digging, and ask around again amongst my friends in the oil refinery industry.