Building 1 time use mold. input?

[Dave Hirshberg]

Thanks Strick,
I was hoping you'd chime in.
I agree with you on that middle part flexing . After I posted last night I thought about Laying up the flat skin on the hardboard in three sessions. First the gel coat on the entire part. Then a skin coat of 1/2 oz glass and 1/4 inch coreboard in three peices( sort of like a tri fold wallet. I believe that this would stifen the three sides and still leave a thin layer of glass to bend around the radius on each side. Then finally a layer of 1 oz in each of the radius before tacking it to the plywood mold.