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Also, seprate question. How effective is the ultrasonic cleaner you have used? I have tried sonicators in the past, but felt that they did not help too much.
I may me wrong, but I don't think that the isopropyl alcohol will soften the plastic. While it is true that ABS plastic or Acrylonitrile butadiene styrene can react with some alcohols, but the times scale of such a reaction at room temp is extremely slow. This is one of the reasons that I cautioned against leaving the knife to soak for too long. Further more in an aqueous solution isopropyl alcohol does not react as negatively with ABS. Still though you are right it can and does damage the plastic under certain circumstances, but I have noticed any negative effects so I still recommended it. I am courius have you ever notice any damage from isopropyl alcohol ?
Thanks for letting me know. I fixed it.
How to service your swiss army knife.
Thanks! Let me know if you have any questions.
How to service your swiss a...View Instructable »