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Took me 3 tries to realize I was cleaning sensor contacts with isopropyl that was too weak
I was using 70% isopropyl to clean a sticky shutter button on a Canon AE-1 and kept getting corrosion after a week. A fellow repairer at the shop said you need 90% or higher or else the water content wrecks the electronics, and now I check every bottle before I use it. Anybody else make this mistake starting out?
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oliviabennett1d ago
Seventy percent is basically WATER with a little alcohol mixed in. I learned this the HARD way with a Pentax K1000 that started acting all weird after I cleaned the battery contacts with some random bottle I found under the sink. Took it to a repair guy and he was like "what did you DO to this thing" and I felt like a TOTAL idiot. Now I have a giant bottle of 99% isopropyl that I REFUSE to let anyone else touch in my house. It dries so fast you can practically watch it evaporate and it leaves ZERO residue behind. Your shutter button story makes me cringe because I can picture exactly what that corrosion looked like after a week.
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jason731d ago
Read an article saying 99% is the ONLY way to go for electronics.
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