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| Neil's Aventador build (Page 28/77) |
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355Fiero
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JAN 01, 04:38 PM
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Project is looking really good.
I agree with you on the bucks, then molds then finished parts,. They end up coming out so much nicer and allows for gel coat to be used as a surface. When using just fiberglass mat as the final surface, over time the mat strands will imprint through the paint. The only way to fix that is either spray gel coat over the mat surface and finish or do as you are doing and make molds that then have finished parts. My opinion is that making the molds really helps to create a nice finished product.
Looking good and keep the updates coming.
Cheers
Don
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GlennGdman
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JAN 02, 07:38 AM
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Hey Don it is nice to see you watching this build!!!
Neil,
I have known Don for something like 15 years now when we both were building 355 Ferrari's. He is now building probably the closest looking 308/328 I have ever seen. Amazing attention to detail and fiberglass skills. Pick don's brain if you need any suggestions.
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Neils88
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JAN 02, 02:35 PM
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| quote | Originally posted by 355Fiero:
Project is looking really good.
I agree with you on the bucks, then molds then finished parts,. They end up coming out so much nicer and allows for gel coat to be used as a surface. When using just fiberglass mat as the final surface, over time the mat strands will imprint through the paint. The only way to fix that is either spray gel coat over the mat surface and finish or do as you are doing and make molds that then have finished parts. My opinion is that making the molds really helps to create a nice finished product.
Looking good and keep the updates coming.
Cheers
Don |
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| quote | Originally posted by GlennGdman:
Hey Don it is nice to see you watching this build!!!
Neil,
I have known Don for something like 15 years now when we both were building 355 Ferrari's. He is now building probably the closest looking 308/328 I have ever seen. Amazing attention to detail and fiberglass skills. Pick don's brain if you need any suggestions. |
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Thanks Don. I've got a little bit of experience with making fiberglass prototypes, but very little experience making finished parts. I appreciate any hints and tricks you throw my way, especially if you see me doing anything wrong.  I figure I'm going to improve my techniques as I progress...so many parts to build. I'll be taking them slowly, and hopefully not making too many costly mistakes. I'd love to see a link to your Ferrari build thread if you have one... 
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Neils88
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JAN 02, 02:41 PM
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I just finished laying up the fiberglass for the mold for the vent opening. It looks good...hopefully it releases ok.
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rourke_87_T-Top
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JAN 02, 03:17 PM
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I'm just commencing to read your thread, very interesting project.
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Neils88
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JAN 03, 12:08 PM
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| quote | Originally posted by rourke_87_T-Top:
I'm just commencing to read your thread, very interesting project. |
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Glad you like it!
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Neils88
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JAN 03, 12:18 PM
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I pulled the first female mold this morning. It only stuck a little in a couple of points, but actually came apart very easily. The detail was lost on one recessed groove that will hold the grill, but that will be easy to fix. I will give the mold a finish sanding just to ensure the surface is perfect before I make the final part. The edges also need to be trimmed as well.
 [This message has been edited by Neils88 (edited 12-01-2024).]
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355Fiero
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JAN 03, 12:58 PM
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I usually apply 4-5 coats of the honey bee mold wax and then brush on two coats of PVA release agent to ensure minimizing the sticking points. A good coat of unwaxed gel coat goes in first and then a thin woven cloth layer, usually 1/2 oz. and then a few layers of mat for thickness and strength. Parts come out very nice and the gel coat will still harden and cure because the little wax in everything is pulled out to the mold surface. Using unwaxed gel coat also removes the need to sand that gel coat before adding on the fiberglass layers and gives a better finished product.
Looking forward to seeing how the parts turn out.
Cheers
Don
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Neils88
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JAN 03, 02:29 PM
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I used 5 coats of Carnauba wax and a couple coats of PVA. The only real issue was along that ridge you can see in the picture. But that appears to be from me not sanding and finishing it properly (it was a tight spot to get into). It just ended up with a little bit of a rough surface along one part of the ridge, but that looks like it will be easy to fix since being reversed, it is now easy to get to. I don't actually need to sand the whole surface, just polish it. I ordered un-waxed gelcoat, so I'll be able to lay up the part properly once it arrives.
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355Fiero
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JAN 05, 08:36 PM
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Excellent;
Looking forward to seeing how it all turns out.
Cheers
Don
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