Originally Posted by
Angler's Choice
Those colours that he was selling were from Spike It, he would just buy the paste pigment and cut it with plasticizer as most resellers do. The difference is he would mix it down quite far to maximize his return on the pigment. Spike it quit selling everything except flake to resellers a few years ago and this is why you see the "New Colorants" section, he had to find a new supplier. Now, all the old colours that he used to have are available from Spike it direct, they mix them a lot stronger too. On top of that they have a thicker medium that they mix the pigments with making settling less of an issue. Take a look and you will notice a drastic difference in how much colourant is needed.
Bob, you are looking for a dye. All the colours listed on the Spike It site will list them as "Dye" in the name, On the MF site you want colours that are NOT labeled as "Non Bleed"
Dyes will actually dye the plastic they are added to making a VERY transparent product. The trade off is they bleed. A pigment uses minute particles suspended in the plastic to obtain the colour desired, there fore they will be far less transparent - opaque but, they have very minimal - no bleeding.