Finally getting this ol’ boat the tic it’s been waiting for. Daughter and I are going to “social distance” and learn some fiberglass at the same time...
This project will take care of hull delamination and a transom repair.
I used the drill-n-fill method on a Hobie 16 in the past, but would like to replace some core material this time to remedy curiosity and learn something from my mistakes....
This boat has a foam core. Anyone know what was used for manufacture and recommend a replacement material. Looks like it might be a half-inch urethane foam sheet, but my expertise is starting from zero!
Thanks for any recommendations!
Knt
Prindle 18 Hull Material
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Posted: Mar 29, 2020 - 01:07 PM
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Posted: Mar 29, 2020 - 01:32 PM
http://www.uscomposites.com/foam.html
These guys are good. Not a source for sheet foam apparently.
https://www.3accoremateri…-foam/airex-c70-pvc-foam
I have used this foam before, good stuff.
http://www.mertons.com/Floatation/scored_foam.html
No experience with this product.
search airex foam
Edited by gahamby on Mar 29, 2020 - 03:24 PM.
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'82 Super Cat 15
Hull #315
Virginia
Previously owned: '70 H14, '79 H16, '68 Sailmaster 26, '85 H14T
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Posted: Mar 29, 2020 - 05:17 PM
If in doubt or unsure, you can go with a higher grade/strength. All of my F25C core replacement done with Corecell. Try or keep an eye on Noah's Corecell discount bin: http://www.noahsmarine.com/corecell/
James
F25C+
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Posted: Mar 30, 2020 - 01:11 AM
Don't feel bad about not using foam core replacement for small jobs. There is plenty of floatation in your Prindle, and the decks are solid fiberglass.
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Sheet In!
Bob
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Prindle 18-2 #244 "Wakizashi"
Prindle 16 #3690 "Pegasus" Sold (sigh)
AZ Multihull Fleet 42 member
(Way) Past Commodore of Prindle Fleet 14
Arizona, USA
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Posted: Mar 30, 2020 - 08:27 AM
I would look into using Divinycell foam for core replacement. Probably the “scored” version if you need to conform to significant curvature.
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Posted: Apr 01, 2020 - 11:40 AM
Thanks for the info! I’m sure it would be fine to leave out some foam, or even re-attach to the old foam. Just thinking I’ll cut and replace some for education and curiosity. The foam piece I cut out is between 1/4 and 1/2 inch thickness. My plan is to buy 1/4 inch and build up, however does the foam shrink with age and deterioration? Undecided if I should buy quarter or half-inch foam and which type foam to try....
Thanks for your inputs!
Knt
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