kinda hot? Which means... more catalyst? Is there a catalyst with this stuff?
Yeah, sorry. You're looking for
this stuff. Bondo brand also makes one (that's the parts store one).
It includes a liquid hardener (MEKP if you're curious) and is mixxed at about 1 ounce catylist:1 Quart resin. This varies depending on temp, humidity, and desired cure time. I mix mine "hot" because I like it to kick faster, and if I don't mix it perfectly it gives me a margin of error. Note, that's a *little* hot, like 1.5 oz/qt. If you mix it too hot, it'll 1. kick before you're done or, 2. start a fire in the paper mixxing cup (don't ask).
This stuff is significantly stronger, and better then Epoxy*. It'll work well, but is a little less forgiving of application errors. Also if you haven't worked with 'glass before, wear latex gloves, plan on throwing out all brushes and mixxing containers when done, ensure good ventilation, and if you're at all sensitive to fumes (or inside) a resperator ain't a bad idea.
The resin will flow better then epoxy, so it's going to get into the strands and bond them better, and it's probably exactly what they used in the factory so it should set up nice.
When it's dry, scuff with 320grit and paint the color of your choice.
ETA *to clarify since Hawkmoon brought up Epoxy resins, "epoxy" in that sentance refers to the stuff you can buy at in Gal. ammounts Home Depot, which is actually Epoxy paint. Epoxy Resin is a diferent animal used in making composite stuff. It tends to be stronger and less brittle then polyester resin, as well as more expensive, and less forgiving to work. Epoxy Resin can be mixed with Milled Glass fibers to make it's own structure, where Poly usually needs glass mat or blown fibers, and a mold to hold structure.