On Tuesday, November 10, 2015 at 6:15:39 PM UTC-8, Jonathan St. Cloud wrote:
Any idea how much weight the urethane paint option adds to an 18 meter glider?

I answer that in a different way: if you go with gel coat, after your first refinish you will be a LOT lighter, but the weight will have come out of your wallet.

I would not consider buying a new glider that was not PU coated.