Hello I have been reading here a lot but haven't posted much. Have been searching for the proper sealant to use on the screws that penetrate the balsa core and fiberglass skin on benches, etc for Hatteras flybridge.This would be to remove and re-seal original screw penetrations. I know 5200 would stop any leaks but am aware it may impede future removal without heat. Is there a general consensus on what would be best?
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10-04-2017 11:41 PM #1
Sealant for Flybridge Balsa Core Penetrations
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Re: Sealant for Flybridge Balsa Core Penetrations
4200 is the sealant to use.
SEVEN
1979 53' MY Hull #563
Antioch, California
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Re: Sealant for Flybridge Balsa Core Penetrations
Use mineral spirits and wipe the excess off no need to leave any exposed.
Best thing to do is carve out the balsa fill with epoxy then re drill the hole in the epoxy a lot more work but last for ever and no worries.Dan
End Of The Line II
1967 34C
EOTL II Rebuild Web Page
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10-05-2017 08:27 AM #5
Re: Sealant for Flybridge Balsa Core Penetrations
Thanks for the replies. I will go the 4200 route unless there is a way to carve out and epoxy fill without removing the benches. Only one area that leaked and it was repaired by someone else however I want to make sure its done properly as a preventative measure
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Re: Sealant for Flybridge Balsa Core Penetrations
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Re: Sealant for Flybridge Balsa Core Penetrations
Agreed, no caulking has good UV protection. They are meant to be coated. I like Ang’s solution however.
SEVEN
1979 53' MY Hull #563
Antioch, California
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10-05-2017 08:13 PM #8Senior Member
- Join Date
- May 2010
- Posts
- 169
Re: Sealant for Flybridge Balsa Core Penetrations
As said By 34Hatt, the only true way to be safe is to pot every screw hole with epoxy. I did that with mine, then ran a bead of paintable sealant around the outer edge of seat and touched up the paint. remember it only takes a tiny leak and your balsa core is #$%.
P
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10-05-2017 09:11 PM #9Senior Member
- Join Date
- Jun 2007
- Posts
- 4,974
Re: Sealant for Flybridge Balsa Core Penetrations
Get rid of all screws though the deck and glass it down.
FTFD... i drive a slow 1968 41c381
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04-22-2020 08:24 AM #10Senior Member
- Join Date
- May 2016
- Posts
- 239
Re: Sealant for Flybridge Balsa Core Penetrations
I am ready to do that. do you info about how to glass it? pictures?
Gus....
Hatteras 53 MY, 1972
Boca Raton, FL