edstreet-
I'm not following your posts.
You give one line posts with no definitive information, like you are a cyanoacrylate deity. Since you have superior knowledge about cyanoacrylates, and have obviously used every brand available, and have personally seen the issue the OP is having, why not just share your infinite wisdom to help resolve the problem?
I have never witnessed CA become mush, however, I've seen it discolor, craze, chip and scratch. I'm unaware of any exposure that would cause it to turn to mush.
I suppose, maybe, extreme heat could cause it to melt, but who would expose a pen to that type of heat?
I'm sure that I'm not the only one that would appreciate and potentially benefit from your enlightenment on the subject.
I would consider my chemistry to be acidic and I have damaged different finishes by holding them, but the polyurethane seems to hold up really well against this problem for me. I haven't damaged any polyurethaned surfaces
by holding or handling them.
Lets set a few issues straight shall we?
*) I am not a cyanoacrylate deity. I am however well researched and reasonably educated on the topic, there are people out there who are more educated than I am.
*) I have not used 'every brand' of CA but I have used several, I have lost count as to how many I have used and I was not paying attention for a good number of years.
*) CA is like a thermoplastic, several things will affect it; of those heat and chemicals can greatly do it harm. CA is removed with products like ACETONE and it will turn to mush and dissolve into the fluid.
*) CA can turn mushy when heat is applied, i.e. left in a HOT HOT HOT car (that's approx 130-140F btw)
I have had one pen turn to MUSH after applying a CA finish. I had who knows what trapped inside the wood blank and in a period of about 3 months time the whole pen was destroyed. It went from a hard wood to goo in about 90 days (3 months) time period.
Also I would like to point out that the human body, sweat to be specific, can be very rich with elements, skin picks up and harbors things as well. Exposure to the pen with traces of some elements can do damage as well. Lets not forget that a pen in a purse or other closed/semi-closed environment with exposure to things like leather, fumes and so forth can also cause significant damage to the CA, same holds true with other finishes as well.