Mike,
You've got the opinions of two professionals, I'll add the opinion of an amateur that's done a little research and played with both resins.
Poly is "good enough", epoxy is better. Why? For an amateur, epoxy is easier to mix, easier to work with, and has little to no odor. A guy using poly resin in an attached garage may run the whole family out of the house with styrene fumes.
Epoxy also has better secondary bond strength, is water proof while poly is only water resistant, and has the best physical characteristics of any of the laminating resins. But it's the most expensive, too.
Either will work, epoxy will work better, last longer, and cost more. So, ya pays yer money and takes yer choice.
__________________
Blue Heron Boat Works
Reinventing the wheel, one spoke at a time.
|