PU240 Medium Density Polyurethane (or similiar) as a core for a prepreg construction?


PU240 Medium Density Polyurethane (or similiar) as a core for a prepreg construction?
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AndersES
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Hello!

I am making a rather complex model where making a mould is extremely difficult, and not necessary because it is a one time only. 
There fore, I wonder if it is possible to make the the core out of some kind of polyurethane, and proceed to wrap it in pre-preg and then cure it as usual? Does anyone have any experience on this topic? 
Would the polyurethane handle the heat?
Would it bend or deform under vacuum? (The construction is about 40mm wide at thinnest and about 600mm long)

Best Regards, 
Anders
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Warren (Staff)
Warren (Staff)
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PU will inhibit the cure even at relatively low temperatures.  By far the better choice would be an Epoxy Tooling block such as our EB700


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
Edited 6 Years Ago by Warren (Staff)
AndersES
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Warren (Staff) - 3/13/2018 2:42:31 PM
PU will inhibit the cure even at relatively low temperatures.  By far the better choice would be an Epoxy Tooling block such as our EP700
Thank you!

Is there any cheaper options on the market?

GO

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AndersES - 7 Years Ago
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AndersES - 7 Years Ago
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AndersES - 7 Years Ago
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                 Interesting site, bookmarked :-)
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