Once it sets, it is pretty well set, and relatively impervious. There ARE SOME solvents that are not great for epoxy, but I do not think that you would be putting them on your blade.
Ari makes some very valid points about maintainance, but he does not mention the cloth that he uses to rub off oils or RenWax.
I would say that this is the single most important item. Chamois, and perfectly clean Chamois at that. There are those of you that use your knives, and those of us that use some, and keep the others pristine. Pristine means as few scratches as possible.
I like to get pre packaged chamois from the hardware store or auto parts store. Some people are particular about the brand, I am not. I only buy the stuff that is cod tanned in England, that is still readily available.
I touch the chamois at the store, working over as much of the cloth as possible, looking for hard spots. Once I find one that I like, I cut it up into 9" squares. I buy the largest piece available, paying between $22.00-$30.00 for the big piece and usually get about 6-10 squares out of that piece. I keep them in a Ziplock bag, and start a new piece when the last one gets moved to the dirty pile. Dirty chamois is used for applying preservative oils, I prefer TuffGlide, or Clove Oil. Dirty is also used to apply and rub Flitz on tarnished nickel silver. Before the last polishing is done, I introduce a brand new, clean chamois, and finish the last of the polishing with that. It allows me to observe any scratches, it is also important to have good lighting.
Using just about any other cloth than chamois increases the chances of scratching the steel. If anyone has information that runs counter to that statement please let me know. I would hate to have wasted the money that decent chamois costs for the last 15 years, if there is a suitable alternative.
Best Regards,
Steven Garsson