My usual method of pre-cleaning is to use peg wood to 'peg the jewels' then once this has removed/dislodged the gunk use a pointy type cotton bud dipped in IPA to clean the jewels and larger watch items. However, this weekend I was trying to remove that awful graphite grease (or at least I think it was) and the IPA was having a tough time lifting it. I switched to naphtha (lighter fluid) and the gunk was gone in a second. I am now questioning my use of IPA, why don't I switch to naphtha as my follow up cleaning solvent after pegging?
Thoughts?