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Otolithco - 12/7/2019 2:35:11 AM

Does anyone have experience with low temperature prepreg?

I am using a water-soluble plug material that gets a bit soft at 75c (the lowest I can test at the moment) thought the melting temp is somewhere around 200c. As the solubility of the plug is essential to the design, I am looking into lower temp prepregs. The complexity of the part makes infusion difficult in both the multi-layer layup as well as proper resin coverage under vacuum. 

Thanks

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Otolithco - 12/7/2019 5:24:08 AM

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Otolithco - 12/7/2019 2:35:11 AM

Does anyone have experience with low temperature prepreg?

I am using a water-soluble plug material that gets a bit soft at 75c (the lowest I can test at the moment) thought the melting temp is somewhere around 200c. As the solubility of the plug is essential to the design, I am looking into lower temp prepregs. The complexity of the part makes infusion difficult in both the multi-layer layup as well as proper resin coverage under vacuum. 

Thanks

I didn't really ask a question. Can anyone recommend a low temp prepreg? Or is anyone aware of a low temp that can be purchased in smaller quantities for prototyping?

Thanks

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Hanaldo - 12/7/2019 6:02:49 AM

Is your intention to use the low-temp pre-preg to make a mould for high temp pre-preg use? If so, the Easy Composites XT135 has an initial cure temp of 65°, which would allow you to cure the mould and demould the plug, then do an elevated temp cure to use the mould at High temps

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scottracing - 12/8/2019 6:41:37 PM

vtc401 from SHD materials cures from 65 degrees in the oven and clave, what material are you using for your soluble mandrel?

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scottracing - 12/8/2019 6:41:37 PM

vtc401 from SHD materials cures from 65 degrees in the oven and clave, what material are you using for your soluble mandrel?

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Otolithco - 12/11/2019 6:19:39 AM

Anyone know a supplier in the US that might sell pre-preg at smaller quantities? We're building working prototypes at the moment.