I do this non sense all the time so I keep assuming you know all this junk. Anyway as soon as I posted I had this brain fart. Oh he needs to know how to do this.
And to keep them from sticking to the hood during initial forming. Tape as flat as you can a layer of plastic to the hood. I use painters plastic instead of paper when I work. Painting or what ever I need to use it for. I get mine from the auto body supply place where I get my paint. I got a 10 mile roll of it hanging from the ceiling LOL so if you need some i will mail you some.
Anywho once the glass is hardening. It is hot and semi-hard. solid to touch. You can move it. It will still bend and warp, so it needs put back until it is fully hardened. It has a oily residue from hardening still. I would say a half hour. Pick it up the plastic will peel right off then. Put it back on the hood so it has support in the final shape of the hood. it may stick a little when it is fully cured. Just pop the hood underneath and it will pop right off. Let it cure untill that oily residue is pretty much gone 24 hours or so before going further. Then it will hold its shape forever.
That little oily layer cannot be disturbed until it is fully cured when you want it to stick to the metal. It has the JB Weld thing going on. If you touch it before its chemical magic is finished it will just pop off later. So once you bolt it on with the resin under it. Walk away and don't touch it for a few days.
Before you do bodywork let it lay in hot sun a few days. Heat lamps on it whatever. Uncomfortable hot to touch. That makes the fiberglass distort any that it is going to. Now it is in the final shape and will stay that way forever. Now bring it in and do the bodywork.
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