GC50 Gelcoat and release agents.


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alex.mc
alex.mc
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I'm using GC50 and when the part is finished it's an excellent product!

However, I spray the GC50, and often find that when it's on the mould it suffers a lot from Fisheyeing. A fairly classic paint reaction problem to silicones in the automotive paint world. I find that the second pass of the spraygun often covers most of them up, and a third usually eliminates them, but occasionally there are always a few left over which can sometimes show on the finished part depending on the colour.

I use Meguiars number 8 and TR systems regular waxes. They both exhibit this. Some years back I used an American Product called "Dolphin wax" and it was very good at being neutral, no fisheyes or creep-back from edges and it released very well. They won't ship to the UK any more though!

Does anyone have any recommendation for a release agent that will minimise this? I don't use PVA before anyone asks as I cannot get the finish from the moulds using it.

Many thanks.
GO

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