I don't think that CA has been used as a pen finish long enough to call it the "Magic Finish". CA glue has been in general use as a pen finish for no more than 2 years that I know of. Is that long enough to know what effect our minger and body oils and moisture will have on the CA finish, or what will be the effect of oils in the wood?
There are a lot of qualifiers for type, purity, and age before using; but my experience with CA glues in general has been that they can get very brittle, start to shrink, and start turning into an amber color after a 3 to 5 years. That time is shorter with exposure to moisture and oil.
There are a lot of qualifiers for type, purity, and age before using; but my experience with CA glues in general has been that they can get very brittle, start to shrink, and start turning into an amber color after a 3 to 5 years. That time is shorter with exposure to moisture and oil.