X-Mozilla-Keys:                                                                                 
MKPerry99@aol.com wrote:

Contact magazine issue # 35 has an article from Ken Rogers on how he made his
intake manifold using extruded polystyrene foam  He shaped the foam then
applied drywall joint compound.  After drying and sanding the joint compound,
he coated the intake runners with PVA release film and applied five layers of
10 ounce bidirectional cloth saturated with epoxy resin.  After curing, he
dissolved the foam with lacquer thinner and washed out the joint compound and
PVA release film with water.

Mike

I think this is the guy Vance mentioned.
Where did he get the extruded polystyrene foam? I just bought some pipe
insulation and it came in two sizes. Too large and too small:-)
1.25 inches and 1.75 inches. I will let you know what acetone
does to it. That PVC trick is probably uneccessary if you wrap it
with strips of plastic. Garbage bag material would probably work fine.

BTW wet plaster poured down inside the insulation foam might
hold it in shape better when you lay it up. You could then break it
out of there when the pipe lay up cured. Just a possibility
that needs to be tested.

Paul Lamar
 
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