Mould problem with PVA Release Agent


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+cosworth
+cosworth
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I have a problem with pva mold release agent, put the pva with a clean lint-free cloth
but when dried pva is not uniformCrazyout spots where there is thepva?
This may not clean the mold?


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Joe
Joe
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Paul (Staff) (24/01/2012)
Hi,

I second what Joe has said about application method, and how it can somtimes look like it's not coated an area when it has...

There is also a neat little trick that you can do to stop the PVA from beading off or 'fish-eyeing' on a waxed mould surface; just add a little (less that 5%) washing-up liquid too the PVA this lowers it's surface tension and reduces the problem, I have never found it to effect the performance of the release, it does however take a little longer to dry.

Let us know how you get on.


Muhaha nice little trick !!

 



 


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