first split mould


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111mattin111
111mattin111
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I've just done my first split mould nothing complex we but the original part undercuts itself so would cause it to lock

Now my question is do it lay the carbon in side in one piece or in two creating an overlap where the moulds meet

Also where the moulds meet will this not cause an air leak when vaccum bagging? 
http://www.talkcomposites.com/Uploads/Images/f3e9b7f4-952e-43ed-982c-8a30.jpg

http://www.talkcomposites.com/Uploads/Images/c6b2f700-3f50-4760-98d0-e630.jpg
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posted 9 Years Ago HOT
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Looking good.
How you lay the cloth is up to you, if you think one piece will go in then fine, if you want to run the weave in different ways for a certain look then put more cuts in, what ever works best.
If it's structural then the orientation is more critical.

You will have a leak at the join so simply apply release agent to the joint faces then use a silicon sealant around the perimeter before bolting the two parts together.

Be careful what type of sealant you use as this affects how good a join you get,
First one I did I used a cheap diy window sealant and the mould simply wouldn't pull together neatly,
Second I got was softer and worked better but still left a large ish ridge so I treated myself to some Loctite SI5926 blue silicon, this can be put on nice and fine and gives a really nice tight neat join that pulls apart easily,
Little more expensive than the large gun type sealant but i recommend it 100%.
GO

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