Thank you so much... wish me luck.

Pour each subsequent layer when the previous is at the B stage so firm but tacky.  That will minimise the chances of any witness line. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

You don't want to mix the entire batch initially, you just want to have it all measured out. So measure out how much resin you need and how much hardener you need. Add your colour to the resin so that each batch is going to be the same colour. Then divide into your 2-3 batches and proceed with the first pour.

You will still see a witness line even if the colours are exactly the same, that's just due to the shrinkage rates of the resin. This can be polished out after if need be.

Hi, I realised i put this in the wrong place earlier, 

I am wanting to remake a failed attempt at an epoxy lamp and after reading a few topics I have nearly found my answer but have a few questions that I am hoping you can help me with?

The lamps I want to make would involve a deep pour of around 11cm I am using glass cast 50 and will need to do this in 2/3 pours, I want to add colour and I have read that I should mix up the entire batch add my colour and then pour in batches.
firslty have i read this correctly? secondly how do I prevent the remaining mix from curing after the first pour if I have to wait around 12 hours between pours?
My first attempt I did in 2 pours but the first was a bit too big and cured really quickly so possibly going to split it into 3 pours to be safe.  The second pour was a slightly different colour so you can see the 2 lines.

All advice welcome...
Thank you