Re: So this is how it is...
 

Keep it comin', MJ. You're good peeps in my book. I learned all I need to know when I saw you asked the iboats forum on my behalf about a vintage/model Yammy that I inquired about here. It may have been just a handful of clicks and keystrokes, but to take it upon yourself to do research for someone else speaks about your character. 8)

I don't know everything, either. You'll see that as my post count snowballs. ;D

Re: So this is how it is...
 

Chesapeake - I don't know the extent of the damage in your floor, but if it's only a small area that's soft . . . you won't need to rip up the entire floor. You can remove the top skin on the area remove dig out the rot and glass the skin back down (make sure to bevel the edges and use fiberglass tape )


Here are some pics from another string off the classicseacraft site.

http://forum.classicseacraft.com/sho...o=&fpart=1

http://www.patmedia.net/scottfish21/wet-cast.jpg

http://www.patmedia.net/scottfish21/casting.jpg

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For the hatch core -

Notice how the edges of the core are beveled and there is an area where the top and the bottom skin will meet and glue together. That's the right way to make a strong hatch. As far as what material to use . . . I think blocks of 1/2" marine ply would work great.

It's just when you use one piece . . . unless you drill lots of holes in it every 6 inches you're likely to trap a big air pocket underneath the core and that air pocket prevents you from making a bond to the core (also the more pressure you apply to the core the wider the airpocket spreads underneath the core)

http://www.casdvm.com/photos/Hatch%2...s/DSCN3106.jpg

http://www.casdvm.com/photos/Hatch%2...s/DSCN3011.jpg

Re: So this is how it is...
 

One other thing - Vaitses doesn't seem to be a huge fan of epoxy . . . He loves vinylester and polyester resins. Based on my own personal experience using all three, I've found epoxy to be the most user friendly resin.

System III (2:1) epoxy the easiest to work with.

Followed by US Composites 635 thin resin.

www.uscomposites.com

I don't really like west systems b/c it's very expensive and cures quickly even with the slow hardener.