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06-01-2020, 03:02 PM
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Join Date: Aug 2018
Location: Cedarville, OH
Posts: 50
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Epoxy / Fuel Compatibility
Is there a problem putting a small dab of epoxy on the float arm where it meets the sender unit just as a little more insurance it won't come out? Don't want to do it if it will react or soften while always being submersed in fuel. Thanks
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Airbus A300
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06-02-2020, 05:41 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,514
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Quote:
Originally Posted by Blizzard
Is there a problem putting a small dab of epoxy on the float arm where it meets the sender unit just as a little more insurance it won't come out? Don't want to do it if it will react or soften while always being submersed in fuel. Thanks
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Probably not, but I used some .025 safety wire there. A local A&P had some fine safety wire and I got 2 ft of .020 and .016.
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Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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06-02-2020, 06:18 AM
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Join Date: May 2006
Posts: 532
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Typically, as I recall, aircraft with "wet wings" use vinyl ester resin rather than epoxy. I don't believe epoxy can maintain its properties after long term exposure to fuel.
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06-02-2020, 10:04 AM
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Join Date: Dec 2007
Location: Flagstaff, AZ
Posts: 2,647
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Instead of guessing about other adhesives, you could probably use proseal. But 1) I've not heard of one of these coming out and 2) safety wire seems more reasonable - if you need to replace the sender, you can remove and keep the old arm.
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Patrick Kelley - Flagstaff, AZ
RV-6A N156PK - Flying too much to paint
RV-10 14MX(reserved) - Fuselage on gear
http://www.mykitlog.com/flion/
EAA Technical Counselor #5357
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06-02-2020, 02:40 PM
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Join Date: Aug 2018
Location: Cedarville, OH
Posts: 50
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I think fine safety wire is probably the safest route. Thanks for the input.
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RV-10 In-Process
PA-18-150
Airbus A300
2020 Dues Paid
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06-03-2020, 10:19 AM
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Join Date: Jan 2005
Location: Martinsville, IN
Posts: 2,326
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Quote:
Originally Posted by Dean Pichon
Typically, as I recall, aircraft with "wet wings" use vinyl ester resin rather than epoxy. I don't believe epoxy can maintain its properties after long term exposure to fuel.
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Boy, I bet the owner of my Long-EZ is going to be surprised to hear that!!
Obviously it depends on the type of epoxy. All the airplanes Burt Rutan built were done so with Safe-t-poxy including the fuel tanks.
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Randy Pflanzer
Greenwood, IN
www.pflanzer-aviation.com
Paid through 2043!
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RV-12 - Completed 2014, Sold
427 Shelby Cobra - Completed 2012, Sold
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