Originally Posted by dddd

Come to think of it, I have a few good-sized boxes of various old, dirty cassettes and chains, which would have value if it was all clean.

Does anyone here know of an economical (mostly time-wise) way of bulk-cleaning these parts?

I've tried soaking in various solvents but I find that the deposits vary quite a bit in their chemistry such that some of this stuff does not respond to various solvents.

I've even considered using a hot-tank setup followed by a fixture that would let me use my pressure washer on them.