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Gooey CA + CA hinges

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Old 10-22-2006, 11:21 PM
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Default Gooey CA + CA hinges

I don't use CA hinges much, but on an ARF I'm assembling I opted to use those to avoid having to reinforce everything to fit hingepoints. I used thin CA on it like usual, but ran out, so I went and got an older (6 months or so) bottle that I had used on a previous kit. It's still superthin, runny etc., but I noticed when I dripped it in that the little bit that remained was gooey. I cleaned it up, flexed the hinges, and you could see it getting stringy as you spread the bevels apart. It flowed into the hinges well etc., but I've read about "bad" CA. Will this be any weaker of a joint or will it simply take a bit longer to cure than "fresh" CA?

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Old 10-23-2006, 06:24 AM
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Default RE: Gooey CA + CA hinges

Try hinging tw opieces of scrap together. Let it sit for a good half hour or so, then try pulling it apart
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Old 10-23-2006, 08:02 AM
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Default RE: Gooey CA + CA hinges

I checked this morning, and other than a slight cracking at full throw, the hinges definitely seem secure. I pulled as hard as I could without breaking the surfaces and it held. I guess the CA was just curing a bit slower.
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Old 10-23-2006, 08:39 AM
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Default RE: Gooey CA + CA hinges

I'd fly it
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Old 10-23-2006, 08:42 AM
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Default RE: Gooey CA + CA hinges

I like to store my CA in the freezer for longer life. I have CA bottles from a couple years ago that are still in great shape. I pack them in an airtight container before putting them in the freezer.
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Old 10-23-2006, 10:01 AM
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Default RE: Gooey CA + CA hinges

Yeah, from what I've read sometimes CA that has been out for awhile can take a bit longer to cure, though it loses no effectiveness. As long as it was thin enough to soak all the way through the hinges and wood then I'm ok with it (and it appeared to be).

Thanks for the input!
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Old 10-23-2006, 12:07 PM
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Default RE: Gooey CA + CA hinges

Price of a small bottle of fresh CA is money well spent on good insurance for an expensive plane.
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Old 10-23-2006, 01:31 PM
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Default RE: Gooey CA + CA hinges

I don't have a hobby shop anywhere near me, and the older CA I used isn't really old, and the CA in it was watery thin when I used it. It just got kinda gooey between the surfaces. Seems strong now.
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