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Thread: Sealing Bolt holes
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04-01-2021, 05:47 PM #15000 RPM
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Sealing Bolt holes
Getting ready to bolt my jackplate on my hydrostream has anyone tried sealing holes with epoxy resin and letting it dry before bolting the jack? Using 3m4200 for sealant opinions about both are appreciated.
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04-01-2021, 06:46 PM #25000 RPM
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thanks minnow I'll stick with the 3m 4200
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04-02-2021, 03:50 PM #3
I think the reason we don't epoxy the bolts in is for serviceability and the shear stresses there make and hardening sealant prone to cracking. 4200 is soft enough it doesn't crack and can seal under a lot of vibrations. I think you were asking not about wet-setting the bolts, but epoxy coating the drilled hole/exposed wood prior to wet-setting the bolt in 4200? If you are asking about that then I would say there are benefits and downsides. I tend to like epoxy coating holes and then 4200 once the epoxy is dry. That goes for bow eyes, transom tie-downs and even drain plug inserts.
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04-03-2021, 03:55 AM #45000 RPM
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That's what I have been doing with everything else like fuel fill, key switch I just wasn't sure about the stress the transom takes. I use masking tape around the hole and a small brush to coat the hole with epoxy let it dry then use the 4200 before installing the part.
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25two.stroke liked this post
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04-05-2021, 10:02 PM #57000 RPM
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i've always used 5200 and never had a water issue. i use more 5200 then necessary and clean up the mess.
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04-05-2021, 11:12 PM #6Supporting Member
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5200 is your friend for anything below the waterline.
Joe
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XstreamVking liked this post
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04-06-2021, 11:23 AM #7
If you never wanna remove it without cracking your gelcoat and glass: 5200
If you want to be able to remove it at some time but also want a permanent seal: 4200
If you don't really care and just wanna slap it on, ride and take it off tomorrow: 4000/silicone
If you don't clean your surface before then you can use 5200 and it wont bond and crack your glass later, but thats not recommended. They all work above/below the waterline, hands down. but 5200 is PERMANENT.
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powerabout liked this post
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04-09-2021, 10:00 AM #8
Sealing the "raw" hole thru the transom with epoxy is the right way to do it. Penetrating epoxy is nice because it really does not lessen the diameter of the drilled hole. Then either 5200 or 4200 to seal the bolts. I prefer 4200 for semi easy removal when required.
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04-09-2021, 03:39 PM #9
There's a great write up on this thread on how to do the transom before bolting on. I followed this procedure on my build.
https://www.screamandfly.com/showthr...ansom+template'78 Hydrostream Viking/'98 225 ProMax
Restoration: https://www.screamandfly.com/showthr...Viking-rebuild
Pictures: https://www.flickr.com/photos/152974...57708863869223
Videos: https://www.youtube.com/tnels
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FMP liked this post
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09-26-2021, 09:58 PM #10
I would seal the transom bolt holes ID with git rot...or a slow drying resin mix.... Than as you said....seal further with goo....sealer after its dry...and you'll be dry as a bone.
1992 Activator
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