Can I lay up Carbon Fibre in a Fibreglass Mold ??


Can I lay up Carbon Fibre in a Fibreglass Mold ??
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Eddie Walsh
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Eddie Walsh
posted 7 Years Ago HOT
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Hi all, I have just signed up on here as I would like to switch from Fibre Glass to Carbon Fibre, and as I have a lot of FG molds can I use these for making my items in CF ?? any help appreciated, Regards DM
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Hanaldo
Hanaldo
Hanaldo
posted 7 Years Ago HOT
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Vinyl ester moulds should be perfect, provided you are using them within their temperature range (ie. not using epoxy pre-pregs over 100C).
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drippy
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drippy
posted 7 Years Ago HOT
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Hanaldo - 7/27/2018 2:09:25 AM
Vinyl ester moulds should be perfect, provided you are using them within their temperature range (ie. not using epoxy pre-pregs over 100C).

awesome!  I was planning on making some smaller parts with infusion but wanted to play around with some prepreg on it too. 
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Can I lay up Carbon Fibre in a Fibreglass Mold ??
Dinoman - 7 Years Ago
     Basically speaking yes, although there might be some problems with the gel coat of your moulds. Polyester mould surfaces have not the best release propertys when using epoxy resin to make the parts.....
oekmont - 7 Years Ago
             would vinylester molds work the same as poly molds or should this work?
drippy - 7 Years Ago
             Why would you advise against using pva release agent "for most applications?" Which types of applications are you referring to? Which applications would you consider pva release agent appropriate?
k.alan.bates - 7 Years Ago
                 If you can spray the PVA then you will get a pretty smooth finish (but not glossy) and it is quick to apply. For a glossy finish (assuming that your mould is glossy) you need to use either a wax or a...
Steve Broad - 7 Years Ago
     Vinyl ester moulds should be perfect, provided you are using them within their temperature range (ie. not using epoxy pre-pregs over 100C).
Hanaldo - 7 Years Ago
             awesome! I was planning on making some smaller parts with infusion but wanted to play around with some prepreg on it too.
drippy - 7 Years Ago
     If you're planning on using X-Preg from Easy Composites, it does work with a vinyl ester mould but you will get some pinholes. It's not awful, but it's not perfect either. For epoxy infusion - vinyl...
Hanaldo - 7 Years Ago
     PVA is great for applications where you aren't sure about material compatibility. I use it for virtually every mould I produce off an original that I cant modify or respray with coatings I know wont....
Hanaldo - 7 Years Ago

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