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Old 03-09-2020, 04:33 PM
Gash's Avatar
Gash Gash is offline
Join Date: Aug 2009
Location: Goodyear, Arizona
Posts: 985

I really like the Permatex Ultra Black. I've used it for gap sealing lots of high heat areas. One tip that could be useful for you: If you dip your finger in water (or spit on your finger), you can smooth the Ultra Black into a nice even fillet. This doesn't make my gap seals any better; it just satisfies my inner OCD.
Karl, Goodyear, Arizona (KGYR) ATP, CFII
Yak 50 Red Thunder Airshows
=VAF= donor 2022
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