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Wasted $150 on a 'universal' sealant that failed after two flights
It was a new brand the supply house pushed, and now I'm redoing the whole job with the proper stuff. Anyone know a good supplier for genuine MIL-S-8802 sealant in the Midwest?
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betty_wells1mo ago
Yeah I had the exact same headache last year with some "multi-purpose" sealant that looked fine until it actually had to hold pressure. I finally gave up on local shops and just ordered AMS-S-8802 straight from SkyGeek, they shipped it out of Ohio and it got here in two days. Make sure you're getting the class B stuff for fuel tanks and not the class A if you're working on wings, I almost grabbed the wrong one by accident.
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Tell you what, that supply house pushing new brands is the worst. Been there with a "universal" gasket goop that turned to dust. Ruby_jones has a point about Aircraft Spruce, but honestly, just call them directly and ask for AMS-S-8802 by name, don't even mention the old MIL number. They'll know exactly what you need and can probably get it shipped to you fast. I'd skip trying to find a local supplier unless you need it today, because half the time they'll just order it from Spruce anyway and mark it up.
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hill.margaret3mo ago
That MIL-S spec was replaced years ago. The current standard is AMS-S-8802, it's basically the same stuff but under a different number. You might be searching for the old name and getting junk. Have you tried calling Aircraft Spruce in Illinois? They usually have the real deal or can point you to a local distributor.
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