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Grcesq 11-10-2009 08:48 PM

new core for cockpit sole
I have a 39 year old Pearson 26 and will be learning all about working with epoxy and fiberglass this Spring. The core of my cockpit sole is wet and rotten. Are there any suggestions for core material? Has anyone used Starboard? I know it it not as light as other materials but the HDPE seems to be almost bulletproof. Thanks for your thoughts......

sailingdog 11-10-2009 08:55 PM

I would recommend you use Airex foam or Divinylcell foam for the core.

Don't use HDPE, as not much in the way of anything adheres to it.

deniseO30 11-10-2009 08:58 PM

I think epoxy won't stick to it. there are more proper core materials plywood even. remembering it's going to be epoxy encased. Core Materials

deniseO30 11-10-2009 08:59 PM

GMTA SD! lol

dbruce85 11-10-2009 10:06 PM

In case you haven't seen the site, it will be a good place to start.
Good luck,

Cockpit Floor Delamination Repair

davidpm 11-10-2009 10:28 PM


Originally Posted by dbruce85 (Post 540672)
In case you haven't seen the site, it will be a good place to start.
Good luck,

Cockpit Floor Delamination Repair

wow what a great howto

sailingdog 11-11-2009 07:21 AM

I'd point out that marine plywood has the worst characteristics of any core material and is the heaviest of them all. Foam or end-grain balsa also have the benefit of being the easiest to work with.

mitiempo 11-11-2009 02:16 PM

That is a good link that was posted for replacing the core in a cockpit sole. But he definitely did it the hard way. You're much better to do it from the top. Good results are very hard to get from below, access is terrible, and you're working over your head. By working from the top it's an easier, faster job with very probably better results. Try this link. Sole Wars IV: A New Core

georgefmys 11-11-2009 07:11 PM

There arelots of ways to ensure that your cockpit repair is strong , looks good and will last. [Starboard is not part of that recipe,by the way] Epoxy resin should be considered and I would strongly recommend Coosa foam as the core.Especially in a large panel, inherent stiffness in the core is a bonus. I first used this product many years ago and now use it almost exclusively in core replacement and small parts fabrication,and know many other repairers who do the same. Check it out, you'll be happy with the results.

Grcesq 11-17-2009 04:31 PM

Thanks to all that responded. I never even thought about how slick the HDPE material is. My bad......:o

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