How to mix pigments in Epoxy ?!?!


How to mix pigments in Epoxy ?!?!
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Prior
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Prior
posted 6 Years Ago HOT
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Hi
I have the 500g Black epoxy paste. I have tried to mix it twice now with my Epoxy resin and both times after painting with it, it has black spots that remain tacky. Once everything is cured, these spots are still like black paste. I assume it's because I'm not mixing properly. Any tips to the best method. Im mixing (as I thought) thoroughly by hand with a wooden stick. In 200ml total quantities with 10% pigment.

Thanks
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Prior
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Prior
posted 6 Years Ago HOT
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oekmont - 7/22/2019 11:06:21 AM
If there are black spots, you obviously didn't mix properly. 10% seems a bit to much pigment for my taste.

I gather that - as In my post I said 'I assume it's because I'm not mixing properly. Any tips to the best method'

I was told to do 5 - 10% pigment. I wanted a very opaque black so went for the max. 

How best to mix pigment, with a small amount of of the resin so it's a thicker paste, and then slowly add more resin (like you do with a white sauce!?)
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How to mix pigments in Epoxy ?!?!
Prior - 6 Years Ago
     If there are black spots, you obviously didn't mix properly. 10% seems a bit to much pigment for my taste.
oekmont - 6 Years Ago
             I gather that - as In my post I said 'I assume it's because I'm not mixing properly. Any tips to the best method ' I was told to do 5 - 10% pigment. I wanted a very opaque black so went for the.....
Prior - 6 Years Ago
     Hi Prior, Assuming this is the West & Senior pigment from Easy Composites, 10% is not an issue albeit the darker the colour, the lower the percentage needs to be to achieve full opacity so black...
Rich (Staff) - 6 Years Ago
             can it be used for a smoked glass effect (obviously using very little pigment) or can you recommend anything?
pmulholl - 6 Years Ago
     In theory yes, you'd need to add very low quantities to maintain the translucency, probably lower than a 0.5% ratio with the black being so potent. Alternatively, there is the Translucent Black...
Rich (Staff) - 6 Years Ago
             Thanks Rich, not sure how many of the other colours would actually use though ;)
pmulholl - 6 Years Ago

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