it is trial and error for me each time i do it but i will tell you what i have learned from everyone else.....
i layer mine in a loaf mold
melt your second color in microwave while you are pouring your first.
take it out and let set ( approx 5 mins between each pour)
do a test..... take a spoonfull of your new color and add it on your first layer...if it mixes(sinks) with the bottom layer right away, one of your layers is too hot... so wait and try again in a few....if it passes the spoon test, spritz the first layer with alcohol and continue to add the new color/layer by the spoonful across the top of the bottom layer. spritz the new color with alcohol and you should see the bottom layer mixing with the new color as you spritz it. if you don't see the new color mixing with the bottom layer at all,(sometimes it can take a minute to warm the bottom layer enough to mix) then one of the layers is too cool.
repeat with the other colors/layers
i will try and find the video i watched on this. it's hard to put into words for me since i am a more visual learner. i hope this helps. sorry if it is confusing.
:cry:
also, i do it with mold soaps but just add one spoonfull between two layers.
lara
