
So I bought this old bottle of "Solvene Typewriter Cleaner" off of eBay a few years ago when I really began to seriously collect and work on my typewriters. It came with an applicator sponge that attaches to the cap of the bottle, and on the side of the box it mentions that it contains "perchloroethylene and naptha". I prefer to use naptha when I'm cleaning my typewriters, so I was wondering if anyone knew anything about this product, and if it would STILL be safe to use on my typewriters given its obvious age? I have no idea how old it really is, but I would guess late 1960s; if I'm wrong, please let me know. Thanks!