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I looked into thickening agents, it was a rabbit hole of organic chemistry that I didn't full understand. People kept saying thinks like 'apparently paraffin wax will thicken it' and I had visions of my neighbours muttering 'apparently he gassed himself to death trying to thicken paint stripper' as the hearse drives off.
spotter
Rik_Van_Looy
Not amazingly if I am honest. In some larger surface areas it really did blister off the paint quite well so it came off with ease, but I think part of the difficulty was down to the colour changing paint. I have heard this tends to be thicker or something. In the end I had to rely rather heavily on the wire cup attachment to "brush off" the rest of the paint. This actually resulted in more abrasion on the aluminium than I had hoped for, but I should have probably foreseen this.
If I were doing it again I would probably try to find something to thicken the dichloromethane so it is like a gel (like nitro or something). Alternatively, for a few frames at once, creating a shallow bath dip and just giving them a soaking one after another could be a good approach (anyone want to organise a frame-stripping party? I still have about 4L left!).
Also note that gloves are ABSOLUTELY NECESSARY. I got some of this on my skin (through two pairs of latex gloves), and it was very irritated!