Re-coring question

[erebus]

Originally Posted by FishStretcher

Everything I read on boat building shows a VE layer between regular epoxy sailboat hulls and polyester gel coat. And that is also what Duratec sells- an intermediate vinyl ester epoxy layer.

Maybe it should be VE on everything, epoxy on epoxy and polyester on polyester?

Of course rules of thumb are made to be broken. By Murphy's hammer.

That's just what I was always told. I always considered it a "general rule of thumb" that applies to general fiberglassing, basic boatyard repairs, shadetree stuff.
All thumbs are out the window when you get into more technical glassing.
You could go down the rabbit-hole real quick just browsing around at the Composites One website.