Mould ruined after 1st use..

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Mould ruined after 1st use..

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carbon man	carbon man posted 5 Years Ago HOT Topic Details
Group: Awaiting Activation Posts: 86, Visits: 1.2K	Hi, this mould is made from high temp epoxy and oven for 17 hours following the data sheet. I think I could of took more care in mould prep which didn't help. But it had about 8 coats of easy lease and struggled to out. Now the mould has carbon print through and cracked gel? Carbon use xpreg xc110 oven cured following standard curing cycle. Edit : carbon was in the mould over night before going in the oven as it was getting late and could fix leak in the bag. Edited 5 Years Ago by carbon man
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carbon man	carbon man posted 5 Years Ago HOT Post Details
Group: Awaiting Activation Posts: 86, Visits: 1.2K	+x Chris Rogers - 6/28/2020 3:02:59 PM That's a total bummer! The print into the mold is not abnormal - release systems generally work better on shiny surfaces - at a micro level there's less overall surface area with no scratches. This kind of thing can usually be buffed out or removed with mold cleaner. The cracks are concerning though! How thick is the carbon mold? The cracks look like they are caused by the mold shell being too thin and the stuck part and the violence required to finally remove it caused cracks as the mold shell flexed and the surface coating couldn't take it. It might help if you could share more pictures and details of the mold and part layup... Leaving the carbon in the mold under vacuum overnight shouldn't be an issue with pre-preg - it can really only help - unless I'm missing something! The mould lay up was 1 x thin gel 1 x thicker gel 1 x 200g carbon 6 x 450g carbon 1 x 200g carbon All layed on tacky stages Cracks possibly from the struggle of getting the carbon out? Lots of pulling and wedging. Carbon actually came out in two bits!
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