Foam for stringers

Wildman · #1 08-26-2010, 01:18 PM

Let me re-phrase it then.

I need to re-foam the stringers to re-glass the top of them because the PO cut so much out of the top of the stringers its not allowing for enough 'torsional' strength.

Right now the boat will rack back and forth as you move across it!

Cheg · #2 08-26-2010, 04:45 PM

I used 2 lb foam. Mertons has it for $72 for a 2 gal. kit. Used most of two of these kits (4 gals.) The temp. was around 65 to 70 degrees when I did it so it may expand more for you in the warmer weather.

Wildman · #3 08-27-2010, 08:38 AM

Quote:

I used 2 lb foam. Mertons has it for $72 for a 2 gal. kit. Used most of two of these kits (4 gals.) The temp. was around 65 to 70 degrees when I did it so it may expand more for you in the warmer weather.

Thanks that was exactly what I was looking for.

Bushwacker · #4 08-26-2010, 04:57 PM

Reglassing the top of the stringers will certainly help, but once you install the deck/cockpit sole and bond it to the top of your reglassed stringers, that'll tie all the stringers together, creating a BIG increase in torsional stiffness! I think Potter used a polyester cabosil/putty for that, but if you use epoxy putty, it'll cost a little more but will have much higher bond strength. That will definitely eliminate the racking you have now with no deck in there!