TOPIC: replacing floor stringers

i was wondering if you could use the seacast system for the floor stringers. i have 2 that need att: and i would have to cut out 2 floatation compartments to use wood. just wondering. frog

There was a member here from NC who poured several transoms with Seacast Frog, and mentioned doing the next stringer job with it as well. I think his real name was Ray, had a website on his boat and Studebaker restorations. My CRS is keeping the rest of the info out of my memory banks, I'll give you a shout if it comes back to me!

I can't see why not but it would be nice to talk to someone who has.

I would not use Seacast for stringers. Poured products tend to have great strength in compression but not tension and not very much in bending moment. Why do you think they put rebar in concrete? Stick with wood or a fiberglass beam, if it was so built. I'm afraid Seacast could start to crack as it flexes with the hull pounding.

thanks guys, guess i'll use wood. frog

frog,

if it was me, i would use several layers of thin strips of MDO plywood, laid in epoxy peanut butter, for the stringers instead of "deminsional lumber". - stronger & easier to do, too, imVho.

at any rate, BEST WISHES on the replacement.

yours, satx

satx, thanks for the idea , and they probaly go in easier than one solid piece of wood. that is what i like about FG you can get different takes on problems. thanks again...frog

frog,

furthermore, as plywood is "processed cheese" anyway, i'd lay the strips in in any direction that i wanted to(i.e.,the easiest way!), as peanut butter "covers up a multitude of sins".
(bet you never thought that you be rebuilding the stringers with cheese & peanut butter???? - you might also use some crackers, as they are GOOD with both. = CHUCKLE)

btw, IF you think you need EXTRA STRENGTH, try building a I-beam out of the cheese & peanut butter - we did that when repairing a 100+ YO launch in NOVA a few years ago- it has "firmed up" that old hull, no end!

just my opinion, satx

Laminates are almost always stronger than a single piece. If you was pouring it with a system like you asked I would defently use something in it for strenght. My keel in my MFG is 4 laminate 3/4 inch strips stagered lenghths. It was hogged or cupped when I got it. I filled the boat with a couple hundred gallons of water for a few weeks and it came back. After it dried back out it's been fine.