Release issue with MDF Mould


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Chompy
Chompy
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Hi all,

I have just purchased my first kits from easy composites. Thanks guys for the training videos, they are very simple to understand.

In making my first part I have experienced a couple of issue and would like to understand where I went wrong.

1.  I used MDF to make my mould, I apply several coats of wax and PVA release agent but could not release the MDF part from the mould, what did I do wrong, did I need to spray the MDF part first?






2.  I had some issues with moulding my carbon part due to the tight spaces and complexity of the part, would I be better off using the vacum method for this part?














Many thanks,




Matt
Edited 13 Years Ago by Chompy
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FLD
FLD
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I usually seal MDF patterns with a 2 pack high build primer.  I flat this with something like a 320 DA disc.  I thrn lacquer that to get a nice glossy finish before using easylease.  This approach does require you to have a reasonable finish on the MDF.  You can get polyester based primers / topcoats designed specifically for this job.  I think its called crystix or something similar and you can use that for some final filling of gaps etc but it will then need sanding / polishing if you want it to be a glossy finish.
GO

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