#1
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Benz hood fabrication
I have been restoring a 1956 Mercedes 300 Sl at the shop.I thought that I had all the metal work done until we stripped the hood and found that it had some old poorly done repairs. There was no saving it .The only solution was to fabricate a new skin. the basic hood shape was fairly easy . The only difficultly was the two 5 foot long hood bubble details.The plan was to make a concrete reinforced fiberglass hammer form to flow form the bubble details into the aluminum skin once the basic blank was formed.Fortunately I have access to another car that I could use for making patterns and a fiberglass buck.The hood was on a finished painted car so we had to be carefull not to scratch or damage it.We taped off all the edges and underside to protect it.We then waxed it with mold release and layer of PVA. water soluble mold release to get a clean release.
We sprayed down some tooling gell coat Followed with a few layers of cloth and resin After a bit of water the casting came off clean with no damage to the loaner hood . More to follow.
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Robert |
#2
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Thanks Robert. I'll be interested to follow your process.
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Bill Longyard Winston-Salem, NC |
#3
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Tool Gel??
What is the tool gel coat? Is it regular gel coating or a specialty type designed to resist the impact from flow forming?
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John Phillips "bustin rust and eating dust" |
#4
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Tooling gell coat is generally used when making fiberglass molds.It is more scratch and impact resistant.It was chosen because we would be hammering directly on it.You can find it at any fiberglass supplier.The supplier I like is www.uscomposites.com.
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Robert |
#5
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I can't wait to see this project as it gets accomplished. Thanks for posting Bob.
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Will |
#6
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I'm very much looking forward to what you do and how you do it, Rob. Like Will said, thanks for posting.
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AC Button II http://CarolinaSculptureStudio.com https://www.youtube.com/channel/UCzSYaYdis55gE-vqifzjA6A Carolina Sculpture Studio Channel |
#7
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Hi Bob
Thanks for posting your progress on the hood. I know you are very fussy and careful, but that must have been kinda scary, to use that very expensive hood to make your mold!!! Will be fun to watch the progress. Steve
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Steve Hamilton Hamilton Classics Auto Restoration & Metalshaping |
#8
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Looking forward to seeing this
cheers paul
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Paul |
#9
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Was going to ask if you were using tooling f'glas.
Lessee how this goes ...
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#10
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Hi bob. I assume you will be making a clamping plate. I also assume the ridges will be hammered in like we did for the hood blister on my Daytona coupe hood at MM.
Mark
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Mark |
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