You don't need to drill holes from below, it just provides another way for the foam to go if you overfill. We were able to inject from below in an area, and that helped us avoid holes in the deck.
Bruce Whitmore 1994 C&C 37/40+ "Astralis" Madeira Beach, FL On Fri, Nov 14, 2025, 12:57 PM Della Barba, Joe via CnC-List < [email protected]> wrote: > Do you need to drill holes under the deck too or does it all work from > above? I have an area about 2 feet by 2 feet I think could use this. > > > > *Joe Della Barba* > > Coquina > > *From:* CHARLES SCHEAFFER via CnC-List <[email protected]> > *Sent:* Wednesday, November 12, 2025 9:33 AM > *To:* Stus-List <[email protected]> > *Cc:* CHARLES SCHEAFFER <[email protected]> > *Subject:* [EXTERNAL] Stus-List Injectadeck > > > > Wow, Injectadeck looks like a good product for fixing decks and maybe > rudders too. The videos make it look easy. I did our deck the hard way > and it took forever to follow all the steps and work around the weather. > > > > Looks like a good product to use under fuel tanks and shower floors too. > > > > https://injectadeck.com/videos/?v=34f435c6b599 > > > > > > Chuck S > > > > > > On 11/12/2025 8:39 AM EST Bruce Whitmore via CnC-List < > [email protected]> wrote: > > > > > > Fixing soft spots in the deck > > > > Hello all, > > > > I thought I'd post about a good experience I had with addressing soft > spots ahead of the companionway hatch on our C&C 37/40+. The hatch stops > were created by screwing down a piece of teak at the front of the > companionway cover, and after years of the hatch banging into the piece of > teak, the screws caused leaks into the core. > > > > In addition, an area around the centerboard cable stop block also > developed leaks and resulted in rotted core. > > > > For a lot of reasons, I dreaded the idea of peeling off the deck, and > found a product called Injectadeck. It is a two-part foam injected into > the space caused by rotted balsa core, and it actually works better when > the area is damp. You drill 1/4" holes about 12" - 18" apart and inject > the foam into the area. Due to the expansion, you may have to apply > pressure to the area to push foam back out to keep the deck from bowing up > too much. No big deal, just step on the deck to keep it all aligned. > > > > So, about 5 years ago, I tried it. It worked great. We fixed a 12" x 18" > area of soft deck in about an hour. It's rock solid, it's light weight, > and I applied MarineTex over the holes and touch up painted the holes. Not > only that, the two part foam doesn't absorb water, so if leaks occur again, > it won't rot. > > > > I'm not getting paid for this review, I paid full price for the product, > and have no ties to the company. Just my $02 worth. > > > > Hope you find this helpful, > > > > Bruce Whitmore > > 1994 C&C 37/40+ "Astralis" > > Madeira Beach, FL > > November is the time of the year when my Internet bills come in. It's also > the time when you can show your appreciation of this list and the C&C Photo > Album. Please help by making a small contribution using PayPal at: > https://www.paypal.com/paypalme/stumurray All contributions are greatly > appreciated. > > November is the time of the year when my Internet bills come in. It's > also the time when you can show your appreciation of this list and the C&C > Photo Album. Please help by making a small contribution using PayPal at: > https://www.paypal.com/paypalme/stumurray All contributions are greatly > appreciated.
November is the time of the year when my Internet bills come in. It's also the time when you can show your appreciation of this list and the C&C Photo Album. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
