Resin Composition and Mould Release


Resin Composition and Mould Release
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MohammadRiyaz
MohammadRiyaz
MohammadRiyaz
posted 9 Years Ago HOT
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Hi,

I am using these compounds for my resin as these are the only ones available:
Epoxy Resin - (Bisphenol – A – Epichlorohydrin)
Hardener - (3 – Amino Methyl – 3, 5, 5 –trimethylcyclohexylamine)
What ratio should I use so as to achieve a strong part and a glossy finish? I tried (10:1) and (5:1), the part still seems to be quite weak.
I tested with the (5:1) ratio and the overall viscosity of the mixture seems low and I get air bubbles inside the part.
The part is made up of 25 layers of glass fibres (Woven) so it's solid. Its a layering procedure only.
The mixture also does not produce any heat when combined together.

The part also does not pop out of the mould and it takes a lot of hammering to get it out which damages the upper surface. I used a lot of Honey wax mould release for this as this was the only one available. The mould is just a hollow cavity of a part and I tried to layer the fibres using a stainless steel base below it. The resin still spreads on the whole stainless steel base when everything is cured but pops out well without effort due to wax release.
I am quite new to this but I think with your advice I would be able to find a proper solution and share it with all of you. Thanks.
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Resin Composition and Mould Release
MohammadRiyaz - 9 Years Ago
     You would really need to speak to the resin manufacturer to find out the correct ratio. It is not as...
Warren (Staff) - 9 Years Ago
     The hardener and resin are most often a "matched pair" so you will usually not get good results when...
Dravis - 9 Years Ago

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