As a rough estimate for a wing that size a maximum of six ounces total, that is combined resin and hardener. Remember what I said in my original post about setting up time. I have never used Z-Poxy but from what I have read on these Forums it might start to set up too quickly. When I glass my wings I warm the resin with a heat gun to make it flow easier. DO NOT DO THIS WITH A FAST SETTING HARDENER MIX. Believe me, I have experience in these matters!!

I do not use epoxy just for glassing wings. I use it for gluing on wing skins, mixing with micro-balloons for fillets and for making parts. I use the same epoxy for everything. I do have to agree that if this is a one time use then the expense can be a little high.

Ed S