On Mon, 26 Mar 2007 14:24:11 GMT, "NE Sailboat"
wrote:

I have used WEST epoxy in the past. But I just did some looking on the net
and the MAS epoxy might be better for my project.

I may be injecting some epoxy into my deck core. MAS epoxy is "low
viscosity"

Anyone know about MAS?

What epoxy do you use? What about injecting into core?



I've used West, Evercoat, and most recently U. S. Composites. U. S.
Composites had the best price most recently and I was going on the
theory that epoxy is epoxy, which may or may not be true.
Additionally this most recent use was not for boat repair. U. S.
Composites sells a "thin" version for layup and wetout in a number of
curing speeds.

That said, if you have water and rot in a balsa core laminate, I don't
think injecting is a very effective cure. When I did some major core
rot repair, I had to tear out the top layer and dig out the rot,
replace the balsa core (should be cut on end grain and laid in like
tile) tie it to the bottom layer with the epoxy, saturate the top of
the balsa and bring up the top layer with woven cloth and mat. In my
case there was enough rot repair to require a complete repaint (Cat
Poly) after the repairs were done.

The boundries of the rot are probably further than you can tell before
you get in there, at least that was my case.

If you don't get that water out, frost heave will split your top layer
laminate even after you've injected the area.

Frank