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Rib/skin rivets and fuel tank sealant.

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pfarber

Well-Known Member
Joined
Feb 21, 2019
Messages
1,064
Location
Dollywood
I was looking through a build thread and saw that a guy had slathered sealant on the skin and the rib flange, then cleco'd in place. Allowed the sealant to set, and then riveted.

Now, when prepping sheet metal, we drill/ream/debur to get the best possible fit. Yet somewhere/somehow this interference layer of sealant is acceptable??

How can the rivet develop full shear strength with all this sealant? I would expect (and was taught) rivet, then seal.

What am I missing?
 
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