Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Homemade fiberglass molds?
View Single Post
  #5 (permalink)  
Old 02-07-2011, 08:50 AM
gow589's Avatar
gow589 gow589 is offline
the Clever Turn Signal
Last photo:
Join Date: Aug 2006
Location: Indiana
Posts: 399
Wiki Edits: 0

Thanks: 0
Thanked 8 Times in 8 Posts
Fiberglass molds can be a lot for work but very rewarding. I have done a few and you learn quickly that it is very much about the details. The mock up part has to have a mirror finish like you could use it on the car. You cannot have pin holes, blemishes, it must have a mirror finish. I paint mine with single stage enamel. Here is one I did for an intake duct:

Basic shape with formers:

Fileld in and shaped with foam; in this case expandable foam. I have also used balsa wood; plywood for vacuum formed molds:

Fiber-glassed, finish glass smooth, painted with automotive paint:

This one laid up in 2-part mold on an old aircraft window. Glass is good too for separation:

This is a great web site for mold building. They not only have supplies but great how to videos and books. Here is an online tutorial. This can be a very time consuming project. It is all about the details!!
Reply With Quote