I cut the outer fibreglass skin off with a rotary grinder. Nice straight cuts and under the handrails after removing them. I found the bad spots by tapping with a hammer. Get a dull thud on tapping probably a wet rotten spot. Dig out all the rotten stuff let dry and fill in with new half inch thick end grain balsa matt. Use thickened polyester resin to apply and fill like putty. Reinstall the fibreglass skin or just make a new one with polyester resin and glass matt. Fill to surface with lightweight auto body polyester filler and sand with a long sander. Paint with International Brightside. Reinstall deck fittings. Good to go.
On Fri, Sep 17, 2021 at 5:34 PM Steve Thomas via CnC-List < cnc-list@cnc-list.com> wrote: > All, > Much has been written about the problem of wet balsa when and if it > happens and I have seen many methods better and worse for deck repairs. > What I have not seen are examples of how people have gone about repairing > wet cored areas of the hull. Any pointers other than "forget about it" > would be appreciated. > > Steve Thomas > > > > > ------ Original Message ------ > From: cnc-list@cnc-list.com > To: cnc-list@cnc-list.com > Cc: joe.della.ba...@ssa.gov; strig...@eastlink.ca > Sent: Friday, September 17, 2021 1:32 PM > Subject: Stus-List Re: [EXTERNAL] Re: Balsa core history > > Yes that old foam is crap. The new Coosa > https://coosacomposites.com/the-coosa-advantage/ and equivalents do not > soak up water and are put together under tons of pressure. > > *From:* Della Barba, Joe via CnC-List <cnc-list@cnc-list.com> > *Sent:* September-17-21 11:21 AM > *To:* Stus-List <cnc-list@cnc-list.com> > *Cc:* Della Barba, Joe <joe.della.ba...@ssa.gov> > *Subject:* Stus-List Re: [EXTERNAL] Re: Balsa core history > > Typo > > Water migrates slowly through end-grain balsa but really tears foam up > > ------------------------------------------------------- > Snip snip snip > > -------------------------------------------------------- > > Great info and research; so, how did balsa go from "wonder" material to; > "bad stuff don't touch..."? > ------------------------------ > > > > Thanks to all of the subscribers that contributed to the list to help with > the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks > - Stu -- Sent from Gmail Mobile
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
