Installing new 13 gallon tank - adhesive question

[Bob Brocious]

Got an easy question for ya. The instructions say to run a bead of "structural adhesive" along the trailing edge of the fuel tank between the rear spar and the tank. Is Hysol suitable for that?

Also, where do I find or how do I make FLOX?

Thank you.

[Esser]

Hey Bob,

You want a Dow Corning product called RTV 739. It's in a caulking tube. I don't think the hysol has the flex you need in this application.

[DesertFox4]

No. Do not use Hysol there. Also the manual says to use an alcohol based silicone adheasive. Amonia based silicone can promote corrosion.

Use a wavy bead when applying so air can get in and cure the adheasive.

This is what we use available from Kitfox Aircraft also.
12169

[DesertFox4]

Flox is basically chopped up cotton. Bought a bag of it from Aircraft Spruce enough to build 6 aircraft.

[efwd]

I too have a bag of Flox to make the other half of the fleet. PM me and I can send you a cup of the stuff. The qty that Kitfox sends in the kit is plenty. Not sure why I bought more.

[Maverick]

How many tubes of the Dow Corning RTV 739 does one need to install both tanks, one or two?

https://www.amazon.com/Dow-Corning-Plastic-Adhs10-1oz-Sealant/dp/B002062Q3G/ref=sr_1_fkmr0_1?keywords=dow+corning+RTV+739&qid=1557419993&s=gateway&sr=8-1-fkmr0

Thanks

[Meyer]

One was enough for me.

[efwd]

One for me as well