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Current Buick Vehicle Discussion
Buick Encore and Encore GX Forum
Leaking roof rails 2018 Encore
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<blockquote data-quote="JoeBlog" data-source="post: 357433" data-attributes="member: 39731"><p>I’d go another route; I’d seal it from the outside, but without silicone. That stuff doesn’t like UV rays. Clean the roof skin and rails like you’re gonna do surgery up there. Then I’d mask away from the bottom about 1/8” on the roof skin, and about 1/8” up on the side of the rail. Use 2” tape. Thank me later. Then I’d use B-1/2 aerospace sealant (1/2 means you get about a 1/2 hour work time at 72 degrees ambient). Mix just enough of the sealer to do the work (if you’ve never used it, be EXTREMELY careful - it’ll get on everything!) and force it into the gap all the way down the tape line. Tongue depressors work very well for this - and for mixing the sealer too. Overfill the area once you’re done, then push it into the crack again, but leave no voids. It’s just like caulking a countertop. Pull the tape off immediately and let it cure. The best solvent for it is MEK, and that’s only until it cures, so don’t get it on anything else. It’s a UV resistant, permanently flexible sealer. I’ve used it on literally hundreds of aircraft. Go here:</p><p>[URL unfurl="true"]https://www.skygeek.com/prc-desoto-pr-1440-fuel-tank-sealant.html[/URL]</p><p></p><p>...now that I’ve written all this, something occurred to me. You could try “Flex Seal” with the same technique. I don’t know how effective it is when it‘s spread thin or it’s longevity, but it’s worth mentioning. I’ve repaired many things with B-1/2, so I’m kinda biased that way.</p></blockquote><p></p>
[QUOTE="JoeBlog, post: 357433, member: 39731"] I’d go another route; I’d seal it from the outside, but without silicone. That stuff doesn’t like UV rays. Clean the roof skin and rails like you’re gonna do surgery up there. Then I’d mask away from the bottom about 1/8” on the roof skin, and about 1/8” up on the side of the rail. Use 2” tape. Thank me later. Then I’d use B-1/2 aerospace sealant (1/2 means you get about a 1/2 hour work time at 72 degrees ambient). Mix just enough of the sealer to do the work (if you’ve never used it, be EXTREMELY careful - it’ll get on everything!) and force it into the gap all the way down the tape line. Tongue depressors work very well for this - and for mixing the sealer too. Overfill the area once you’re done, then push it into the crack again, but leave no voids. It’s just like caulking a countertop. Pull the tape off immediately and let it cure. The best solvent for it is MEK, and that’s only until it cures, so don’t get it on anything else. It’s a UV resistant, permanently flexible sealer. I’ve used it on literally hundreds of aircraft. Go here: [URL unfurl="true"]https://www.skygeek.com/prc-desoto-pr-1440-fuel-tank-sealant.html[/URL] ...now that I’ve written all this, something occurred to me. You could try “Flex Seal” with the same technique. I don’t know how effective it is when it‘s spread thin or it’s longevity, but it’s worth mentioning. I’ve repaired many things with B-1/2, so I’m kinda biased that way. [/QUOTE]
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Current Buick Vehicle Discussion
Buick Encore and Encore GX Forum
Leaking roof rails 2018 Encore
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