I was thinking I might try JB Weld. I would make a removable backing mold (with a plastic yogurt/margarine lid) so that the JB Weld would have something to shape to. Thoughts? JB Weld is pretty hard and durable... maybe fiberglass and resin would be a better choice.Never had a problem unless you don't rough up the hood for the fiberglass to stick to. Never tried the aluminum but sounds like it might work as well. Not as messy for sure.
I had an infrared overhead heater about three feet above my hood, so I think it might have been warm enough (the hood was warm to the touch). I'm thinking it was old resin (I had it in the garage, it is 8-10 years old), the hardener I bought yesterday.You likely have both. Too low a temp and old resin and hardener. Been there done that. I have used a hair dryer in the past.