I met a fellow inmate at the SAMPE show that called me about helping him do a mold and C/F part. It’s a roof for a car.
He ordered a new roof panel from germany for the buck.
after preping we laid down two coats of PTM&W 1135 & four plus gallons of PTM&W 2114 with 7500 and 14 oz. tooling cloth
this were we quit last night
the flange is pvc foam sheet
Pvc ?? Does this have a plastic coating
no coating cept da wax’
comes in 4x8 sheets 1/8"(@$20) - 2" thick ($$)
Ok i meant it most have a plastic surface over the foam ??
pvc foam is like a light-weight sheet of plastic. Solid and closed cell. Treated like a normal sheet of plastic, not like a “foam” as we all know for sandwich construction.
back in the cave
Nice. You make everything seem so easy. 
Looking good i doo need to find a good flanging material
how did you get the proper curves of the roof transferred to your wood supports?
i still havent found a good way to do it
Good question
we traced the wood at the front & back and cut it. Then used a grinder on the wood to get it close.
We contacted the tech rep at PTM&W and he told us to not put the supports directly onto the mold. prop it up off of the mold about an 1/8 inch. and lay them up onto the mold.
His reason was that if you put the reinforcement directly on the mold it could transfer impressions onto the mold surface.
This I did not know. and it makes sense, I’ll be doing it that way from now on. (we used a few tounge depressors and pulled them out later)
I have had it transfer onto polyester molds before
I always cut some strips of PU foam and place then between the back face of the mould and the seporting frame for this exact reason, it works a treat.
Use tack nails to hold the foam strips to the wood frame (If your using wood that is!) then hold the suporting frame in place on the mould with a little bodyfiller (bondo), then glass it into place. that stops print-through from the frame.
OK, so we confused it last Thursday. It took 40 minutes to flow out. We did make the mistake of not having the greenflow out to the edge of one end of the tool. we had to wait a little longer.
we made three resin supply lines but only used the center one.
I left it bagged overnight and my partner in crime picked it up still in the tool Friday a.m. The wife and I had a road race to do at ButtonWillow Raceway and I was not around for the de-mold.
I got the finished (untrimed) pictures about an hour ago.
I’m glad to get done with that thing and out of my shop. I brought back some race car parts to fix, thats what I do best.
And if your wondering, it’s a roof for a BMW M3 thingy wanna “B”
Looks great